中文专著和期刊杂志

[Z1]    徐正元、徐敬、刘伟杰、杜子豪，《水下无线光通信》，人民邮电出版社，2021年3月.

[Z2]    徐正元，金显庆，毛天奇，王昭诚，《室外可见光通信与智能交通》，人民邮电出版社，国之重器出版工程，2019年12月1日.

[Z3]    徐正元，宽光谱无线光通信理论与方法，《中国基础研究发展报告》，科学出版社，2019年10月1日，pp. 275-277.

[Z4]    徐正元、王昭诚, 6G 扬帆起航：拍赫兹通信与健康泛在网络助推6G 新应用，《科技纵览》，2019年11月，pp. 62-66.

[Z5]    徐正元、赵春明、王昭诚、陈雄斌、龚晨，光联万物：宽光谱无线光通信技术，《科技纵览》，2017年5月，第58期，pp. 68-70.

[Z6]    李上宾，黄博扬，李国强，陈明，罗江华，徐正元，红色荧光体增强型硅基光电二极管的频谱响应研究，《新能源进展》，vol. 4, no. 5, pp. 341-344, Oct. 26, 2016.

[Z7]    徐正元，中国发展可见光通信技术与产业的思考,《中兴通讯技术》，2015年2月第1期，第52-54页.

[Z8]    黄博扬，高谦，徐正元，基于多色LED的可见光通信联合调制技术, 《中兴通讯技术》，2014年12月第6期，第25-28页.

[Z9]    娄鹏华，张洪明，郎凯，姚敏玉，徐正元，基于室内可见光照明的位置服务系统，《光电子•激光》，23(12) pp. 2299-2303. 2012.12.

Book

[B1]   Z. Wang, Q. Wang. H. Huang, and Z. Xu, Visible Light Communications: Modulation and Signal Processing, ISBN: 978-1-119-33138-4, 356 pages, Wiley-IEEE Press, USA, November 2017.

Book Chapters

[BC1] H. Le Minh, W. Popoola, and Z. Xu, “Techniques for Enhancing the Performance of VLC Systems,” book chapter in Visible Light Communications: Theory and Applications, Eds.: Zabih Ghassemlooy, Luis Nero Alves, Stanislav Zvanovec, Mohammad-Ali Khalighi, CRC Press, London, June 6, 2017.

[BC2] C. Gong, Z. Xu, and X. Wang, “Distributed Big Data Storage in Optical Wireless Networks,” book chapter in Big Data over Networks, Eds.: Shuguang Cui, Tom Luo, Alfred Hero, Jose M. F. Moura, Cambridge University Press, UK, 2014.

[BC3] Z. Xu, C. Gong, and B. Bai, “Visible Light Positioning and Communication,” book chapter in Visible Light Communication, Eds.: Shlomi Arnon, Cambridge University Press, UK, 2014.

[BC4] H. Ding, B. M. Sadler, G. Chen, and Z. Xu, “Modeling and Characterization of Ultraviolet Scattering Communication Channels,” book chapter in Advanced Optical Wireless Communication Systems, Eds.: Shlomi Arnon, John R. Barry, George K. Karagiannidis, Robert Schober, and Murat Uysal, Cambridge University Press, UK, 2012.

[BC5] Z. Xu, “Trends in Ultra-wideband Transceiver Design,” book chapter in Ultra-Wideband Wireless Communications and Networks, Eds.: S. Shen, M. Guizani, R. C. Qiu, and T. Le-Ngoc, John Wiley & Sons, Hoboken, NJ, 2006.

Journal Articles (in reverse chronological order)

 Published/In press

[J1]    S. Wang, Z. Li, Z. Xu, Z. Yang, F. Long, J. Tang, C. Gong, Z. Xu, J. Shi, Z. Li, Y. Zhou, J. Zhang, N. Chi, and C. Shen, “A large FoV UV LED array transmitter enabling optical wireless communication over 1.1km,” IEEE Photonics Technology Letters, 2025.

[J2]    N. Huang, Y. Huang, W. Liu, and Z. Xu, “Adaptive transmission based on link correlation for multi-wavelength Petahertz communication,” IEEE Photonics Technology Letters, 2025.

[J3]    J. Tang, T. Lin, C. Gong, and Z. Xu, “Double-scatter characterization on scattering-enhanced non-line-of-sight ultraviolet communication,” IEEE Transactions on Communications, 2025.

[J4]    W. Liu, S. Chen, N. Huang, C. Gong, Y. Chen and Z. Xu, “A real-time MEMS mirror based beam steering and tracking system for optical wireless communication,” Journal of Lightwave Technology, vol. 43, no. 6, pp. 2681-2689, Mar. 2025.

[J5]    Y. Ding, C. Gong, W. Liu, Y. Zhang, H. Sun, and Z. Xu, “Multi-input UV communication with adaptive gain adjustment,” IEEE/OPG Journal of Lightwave Technology, vol. 43, no. 3, pp. 1170-1178, Feb. 2025.

[J6]     L Qian, L Zhao, N Huang, A Chaaban, and Z Xu, “Security enhancement by intelligent reflecting surfaces for visible light communications,” Optics Communications, vol. 570, pp. 130851.1-130851.12, Nov. 2024.

[J7]    Y. Zhang, Y. Pan, C. Gong, B. Liu, and Z. Xu, “Channel estimation and signal detection for NLOS ultraviolet scattering communication with space division multiple access,” IEEE Transactions on Communications, vol. 72, no. 10, pp. 6427-6441, Oct. 2024.

[J8]    L. Sun, C. Gong, and Z. Xu, “Connectivity analysis and user access design of ground-to-air ultraviolet communication networks,” Journal of Optical Communications and Networking, vol. 16, no. 10, pp. 1006-1017, Oct. 2024.

[J9]    Y. Yang, Y. Ren, W. Liu, C. Gong, N. Huang, and Z. Xu, “Spread spectrum for covert communication in ultra-violet communication system,” Optics Express, vol. 32, no. 15, pp. 25981-25994, Jul. 2024.

[J10]   X. Zhang, W. Liu, N. Huang, and Z. Xu, “Orthogonal waveform-based backscattering interference suppression technique for underwater optical wireless communication,” Journal of the Optical Society of America A, vol. 41, no. 7, pp. 1372-1380, Jul. 2024.

[J11]  F. Long, J. Tang, L. Li, J. Chen, C. Gong, and Z. Xu, “Adaptive modulation and coding with LDPC codes and retransmission for ultraviolet communication,” IEEE Photonics Journal, vol. 16, no. 3, Jun. 2024.

[J12]  Y. Zhou, N. Hunag, and Z. Xu, “Outage and rate analysis for industrial internet of things in multitier visible light communication networks inside finite 3-D space,” IEEE Internet of Things Journal, vol. 11, no. 11, pp. 20590-20604, Jun. 2024.

[J13]  W. Liu, S. Zhang, N. Huang, and Z. Xu, “Experimental investigation on backscattering interference cancellation for full-duplex UOWC based on time-reversal preprocessing,” Journal of the Optical Society of America A, vol. 41, no. 6, pp. B40-B47, June 2024.

[J14]  N. Huang, Q. Sun, W. Liu, and Z. Xu, “Wide field-of-view reception and beam direction estimation based on liquid-filled optical receiver,” IEEE Photonics Technology Letters, vol. 36, no. 9, pp. 621-624, May 2024.

[J15]  S. Yu, C. Gong and Z. Xu, “Design and optimization of sandwich-type synchronization sequence for optical wireless communication with a photon-counting receiver,” IEEE Internet of Things Journal, vol. 11, no. 9, pp. 15880-15893, May. 2024.

[J16]  M. Yuan, L. Zhang, F. He, X. Tong, M. Song, Z. Xu, and X. Li, “InFi: End-to-end learning to filter input for resource-efficiency in mobile-centric inference,” IEEE Transactions on Mobile Computing, vol. 23, no. 5, pp. 3523-3538, May 2024.

[J17]  W. Liu, W. Yuan, N. Huang, and Z. Xu, “Experimental saturation characteristics of the PMT and adaptive compensation algorithm for OWC,” Applied Optics, vol. 63, no. 11, pp. 2783-2790, April 2024.

[J18]  W. Liu, X. Chen, N. Huang, and Z. Xu, “Experimental verification of a multiuser detection technique for asynchronous UOWC systems,” IEEE Photonics Journal, vol. 16, no. 2, pp. 7300908.1-7300908.8, April 2024.

[J19]  W. Liu, J. Zhang, N. Huang, and Z. Xu, “Design and implementation of a time synchronization method for UOWC networks,” Journal of Communications and Information Networks, vol. 9, no. 1, pp. 56-63, March 2024.

[J20]  Y. Zhou, N. Huang, and Z. Xu, “Resource allocation performance analysis and idle resource reallocation for FOV-limited indoor VLC networks,” Journal of Optical Communications and Networking, vol. 16, no. 3, pp. 243-257, March 2024.

[J21]  W. Liu, W. Jiang, N. Huang, and Z. Xu, “Experimental investigation of underwater optical wireless communication for correlated SIMO channel under temperature-induced turbulence,” IEEE Photonics Journal, vol. 15, no. 4, pp. 7302207.1-7302207.7, August 2023.

[J22]  W. Liu, L. Zhang, N. Huang, and Z. Xu, “Wide dynamic range signal detection for underwater optical wireless communication using a PMT detector,” Optics Express, vol. 31, no. 15, pp. 25267-25279, July 2023.

[J23]  J. Tang, Y. Ding, T. Lin, L. Sun, Y. Pan, C. Gong, and Z. Xu, “Ultraviolet communication with a large scattering angle via artificial agglomerate fog,” Optics Express, vol. 31, no. 14, pp. 23149-23170, July 2023.

[J24]  Y. Pan, G. Wang, Y. Zhang, J. Tang, C. Gong, and Z. Xu, “Graph-based conflict-free MAC protocol and conflict analysis for two-layer ultraviolet communication network,” Journal of Optical Communications and Networking, vol. 16, no. 6, pp. 381-392, June 2023.

[J25]  F. Zhang, J. Luo, J. Li, T. Lin, C. Gong, and Z. Xu, “Effects of underwater swing nodes on water-to-air visible light communication,” Applied Optics, vol. 62, no. 16, pp. 4245-4254, June 2023.

[J26]  N. Huang, Y. Zhu, W. Liu, and Z. Xu, “Improved synchronization scheme for the photon-counting-based underwater optical wireless communication system,” IEEE Photonics Journal, vol. 15, no. 3, pp. 7302106.1-7302106.6, June 2023.

[J27]  W. Liu, Y. Jiang, N. Huang, and Z. Xu, “Distorted laser spot center positioning based on captured image under laser-camera misalignment in UOWC,” IEEE Photonics Journal, vol. 15, no. 3, pp. 7302206.1-7302206.6, June 2023.

[J28]  Y. Ding, Y. Zhang, H. Yu, C. Gong, H. Sun, and Z. Xu, “266 nm ultraviolet communication under unknown interference using micro-UV LED,” Optics Express, vol. 31, no. 10, pp. 16406-16422, May 2023.

[J29]  W. Liu, Z. Ye, N. Huang, S. Li, and Z. Xu, “Multilevel polarization shift keying modulation for turbulence-robust underwater optical wireless communication,” Optics Express, vol. 31, no. 5, pp. 8400-8413, February 2023.

[J30]  Y. Wang, C. Gong, N. Huang, and Z. Xu, “Map-assisted constellation design for mmWave WDM with OAM in short-range LOS environment,” IEEE Open Journal of the Communications Society, vol. 4, pp. 91-103, January 2023.

[J31]  J. Zhang, C. Gong, S. Li, R. Ni, C. Zuo, J. Zhu, M. Zhao, and Z. Xu, “Wireless communication with microwave photon-level detection based on superconducting devices: Achievable rate prediction,” China Communications, vol. 19, no. 12, pp. 27-40, 2022.

[J32]  Y. Zhang, C. Gong, and Z. Xu, “Bi-directional ultra-violet communication with self-interference,” Optics Express, vol. 30, no. 21, pp. 38534-38549, October 2022.

[J33]  H. Yu, M. H. Memon, H. Jia, Y. Ding, S. Xiao, X. Liu, Y. Kang, D. Wang, H. Zhang, S. Fang, C. Gong, Z. Xu, B. S. Ooi, and H. Sun, “Deep-ultraviolet LEDs incorporated with SiO2-based microcavities towards high-speed ultraviolet light communication,” Advanced Optical Materials, vol. 10, pp. 2201738.1-2201738.7, September 2022.

[J34]  B. Liu, C. Gong, J. Cheng, Z. Xu, and J. Liu, “Blind and semi-blind channel estimation/equalization for Poisson channels in optical wireless scattering communication systems,” IEEE Transactions on Wireless Communications, vol. 21, no. 8, pp. 5930-5946, August 2022.

[J35]  Q. Hu, C. Gong, T. Lin, J. Luo, and Z. Xu, “Secrecy performance analysis for water-to-air visible light communication,” IEEE/OPG Journal of Lightwave Technology, vol. 40, no. 14, pp. 4607-4620, July 2022.

[J36]  C. Fu, T. Lin, C. Gong, N. Huang, T. Wei, X. Liu, L. Tang, L. Su, J. Luo, and Z. Xu, “Anti error and erasure coding for water-to-air visible light communication through wavy water surface with wave height up to 0.6 meters,” Optics Express, vol. 30, no. 11, pp. 18743-18761, May 2022.

[J37]  Y. Zhu, C. Gong, Y. Ding, and Z. Xu, “Weak signal detection for visible light communication in the pulse and transition regimes of an operational PMT detector via an SVM based learning method,” Optics Express, vol. 30, no. 8, pp. 12456-12473, April 2022.

[J38]  J. Wei, C. Gong, N. Huang, and Z. Xu, “Channel modeling and signal processing for array-based visible light communication system under link misalignment,” IEEE Photonics Journal, vol. 14, no. 2, pp. 7318710.1-7318710.10, April 2022.

[J39]  Y. Luo, D. Wang, Y. Kang, X. Liu, S. Fang, M. H. Memon, H. Yu, H. Zhang, D. Luo, X. Sun, B. S. Ooi, C. Gong, Z. Xu, and H. Sun, “Demonstration of photoelectrochemical-type photodetectors using seawater as electrolyte for portable and wireless optical communication,” Advanced Optical Materials, vol. 10, pp. 2102839.1-2102839.8, March 2022.

[J40]  H. Qi, D. Zou, C. Gong, and Z. Xu, “Two-dimensional intensity distribution and adaptive power allocation for ultraviolet ad-hoc network,” IEEE Transactions on Green Communications and Networking, vol. 6, no. 1, pp. 558-570, March 2022.

[J41]  H. Abuella, M. Elamassie, M. Uysal, Z. Xu, E. Serpedin, K. A. Qaraqe, and S. Ekin, “Hybrid RF/VLC systems: A comprehensive survey on network topologies, performance analyses, applications and future directions,” IEEE Access, vol. 9, pp. 160402-160436, December 2021.

[J42]  J. Zhang, C. Gong, S. Li, S. Wu, R. Ni, C. Zuo, J. Zhu, M. Zhao, and Z. Xu, “Quantumized microwave detection based on L-type three-level superconducting system: HMM modeling and performance prediction,” IEEE Transactions on Communications, vol. 69, no. 11, pp. 7192-7204, November 2021.

[J43]  Z. Xu, W. Liu, Z. Wang, and L. Hanzo, “Petahertz communication: harmonizing optical spectra for wireless communications,” Digital Communications and Networks (DCN), vol. 7, no. 4, pp. 605-614, November 2021.

[J44]  M. Chen, X. Jin, S. Li, and Z. Xu, “Compensation of turbulence-induced wavefront aberration with convolutional neural networks for FSO systems,” Chinese Optics Letters, vol. 19, no. 11, pp. 110601.1-110601.6, November 2021.

[J45]  Z. Jiang, C. Gong, G. Wang, and Z. Xu, “On the achievable rate and capacity for a sample-based practical photon-counting receiver,” IEEE Transactions on Communications, vol. 69, no. 9, pp. 6152-6169, September 2021.

[J46]  S. Wu, C. Gong, C. Zuo, S. Li, J. Zhang, Z. Dai, K. Yang, M. Zhao, R. Ni, Z. Xu, and J. Zhu, “Weak radio frequency signal detection based on piezo-opto-electro-mechanical system: Architecture design and sensitivity prediction,” IEEE Internet of Things Journal, vol. 8, no. 12, pp. 10085-10102, June 2021.

[J47]  C. Gong, S. Wu, C. Zuo, K. Yang, S. Li, J. Zhang, M. Zhao, R. Ni, Z. Xu, and J. Zhu, “Microwave communication under weak intensity to quantumized level: Recent progress and future challenges,” Journal of Communications and Information Networks, vol. 6, no. 1, pp. 17-31, March 2021.

[J48]  W. Liu, Z. Xu, and X. Jin, “Saturation compensation for visible light communication with off-the-shelf detectors,” Optics Express, vol. 29, no. 6, pp. 9670-9684, March 2021.

[J49]  Z. Feng, S. Li, and Z. Xu, “Experimental underwater quantum key distribution,” Optics Express, vol. 29, no. 6, pp. 8725-8736, March 2021.

[J50]  T. Lin, N. Huang, C. Gong, J. Luo, and Z. Xu, “Preliminary characterization of coverage for water-to-air visible light communication through wavy water surface,” IEEE Photonics Journal, vol. 13, no. 1, pp. 7901013.1-7901013.13, February 2021.

[J51]  N. Huang, C. Gong, and Z. Xu, “Design and demonstration of robust visible light positioning based on received signal strength,” IEEE/OSA Journal of Lightwave Technology, vol. 38, no. 20, pp. 5695-5707, October 2020.

[J52]   Z. Jiang, C. Gong, G. Wang, and Z. Xu, “On the sum-rate capacity of Poisson multiple access channel with non-perfect photon-counting receiver,” Journal of Communications and Information Networks (JCIN), vol. 5, no. 3, pp. 335-349, Sept. 2020.

[J53]  J. Xu, C. Gong, J. Luo, and Z. Xu, “LED half-power angle optimization for ultra-dense indoor visible light communication network deployment,” IEEE Open Journal of the Communications Society, vol. 1, pp. 835-848, July 2020.

[J54]  J. Deng, X. Jin, X. Ma, M. Jin, C. Gong, and Z. Xu, “Graph-based multi-user scheduling for indoor cooperative visible light transmission,” Optics Express, vol. 28, no. 11, pp. 15984-16002, May 2020.

[J55]  W. Liu and Z. Xu, “APD nonlinearity and its impact on PAM-based visible light communication,” IEEE Communications Letters, vol. 24, no. 5, pp. 1057-1061, May 2020.

[J56]  W. Liu and Z. Xu, “Some practical constraints and solutions for optical camera Communication,” Philosophical Transactions of the Royal Society A, vol. 378, no. 2169, pp. 20190191.1-20190191.25, April 2020.

[J57]  B. Liu, C. Gong, J. Chen, and Z. Xu, “Correlation-based LTI channel estimation for multi-wavelength optical scattering NLOS communication,” IEEE Transactions on Communications, vol. 68, no. 3, pp. 1648-1661, March 2020.

[J58]  B. Liu, C. Gong, and Z. Xu, “Correlation analysis and link gain prediction for optical wireless scattering communication over broad spectra,” IEEE Transactions on Wireless Communications, vol. 19, no. 2, pp. 1386-1396, February 2020.

[J59]  Q. Hu, X. Jin, W. Liu, D. Guo, M. Jin, and Z. Xu, “Comparison of interpolation-based sampling frequency offset compensation schemes for practical OFDM-VLC systems,” Optics Express, vol. 28, no. 2, pp. 2337-2348, January 2020.

[J60]  G. Zheng, C. Gong, and Z. Xu, “Constrained partial group decoding with max-min fairness for multi-color multi-user visible light communication,” IEEE Transactions on Communications, vol. 67, no. 12, pp. 8573-8584, December 2019.

[J61]  Z. Jiang, C. Gong, and Z. Xu, “Achievable rates and signal detection for photon-level photomultiplier receiver based on statistical non-linear model,” IEEE Transactions on Wireless Communications, vol. 18, no. 12, pp. 6015-6029, December 2019.

[J62]  B. Liu, C. Gong, J. Chen, and Z. Xu, “Power allocation over broad spectra optical wireless scattering communication based on link gain correlation,” IEEE Transactions on Communications, vol. 67, no. 10, pp. 6980-6993, October 2019.

[J63]  D. Chen, J. Wang, S. Li, and Z. Xu, “Effects of air bubbles on underwater optical wireless communication,” Chinese Optics Letters, vol. 17, no. 10, pp. 100008, October 2019.

[J64]  G. Wang, C. Gong, Z. Jiang, and Z. Xu, “Multi-layer superimposed transmission for optical wireless scattering communication,” IEEE Photonics Journal, vol. 11, no. 5, Article #7906514, pp. 1-14, October 2019.

[J65]  Y. Zhu, C. Gong, J. Luo, Z. Xu, and W. Xu, “SVM-assisted realization and demonstration of indoor 4Mb/s non-line-of-sight visible light communication with second-order reflection,” IEEE Photonics Journal, vol. 11, no. 5, Article #7906017, pp. 1-18, October 2019.

[J66]  X. Liu, C. Gong, Z. Babar, D. Zou, Z. Xu, and L. Hanzo, “Signal characterization and achievable transmission rate of  VLC under receiver nonlinearity,” IEEE Access, vol. 7, no. 1, pp. 137030-137039, September 2019.

[J67]  A. Vavoulas, H. G. Sandalidis, N. D. Chatzidiamantis, Z. Xu, and G. K. Karagiannidis, “A survey on ultraviolet C-band (UV-C) communications,” IEEE Communications Surveys & Tutorials, vol. 21, no. 3, pp. 2111-2133, Third Quarter 2019.

[J68]  M. Gao, C. Li, and Z. Xu, “Performance enhancement of LED-based indoor OFDM-VLC system using digital chaotic scheme,” Optics Communications, vol. 439, pp. 21-26, May 2019.

[J69] J. Wang, C. Lu, S. Li, and Z. Xu, “100 m/500 Mbps underwater optical wireless communication using an NRZ-OOK modulated 520 nm laser diode,” Optics Express, vol. 27, no. 9, pp. 12171-12181, April 2019.

[J70]  Y. Mao, X. Jin, W. Pan, W. Liu, M. Jin, C. Gong, and Z. Xu, “Real-time investigation of CAP transceivers with hybrid digital equalization for visible light communication,” Optics Express, vol. 27, no. 7, pp. 9382-9393, April 2019.

[J71]  D. Zou, C. Gong, K. Wang, and Z. Xu, “Characterization on practical photon counting receiver in optical scattering communication,” IEEE Transactions on Communications, vol. 67, no. 3, pp. 2203-2217, March 2019.

[J72]  Q. Gao, S. Hu, C. Gong, E. Serpedin, K. Qaraqe, and Z. Xu, “Distance-range-oriented constellation design for VLC-SCMA downlink with signal-dependent noise,” IEEE Communications Letters, vol. 23, no. 3, pp. 434-437, March 2019.

[J73]  Z. Jiang, C. Gong, and Z. Xu, “Clipping noise and power allocation for OFDM-based optical wireless communication using photon detection,” IEEE Wireless Communications Letters, vol. 8, no. 1, pp. 237-240, February 2019.

[J74]  J. Xu, C. Gong, and Z. Xu, “Experimental indoor visible light positioning systems with centimeter accuracy based on a commercial smartphone camera,” IEEE Photonics Journal, vol. 10, no. 6, Article #7908717 pp. 1–17, December 2018.

[J75]  Q. Hu, X. Jin, and Z. Xu, “Compensation of sampling frequency offset with digital interpolation for OFDM-based visible light communication systems,” IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 23, pp. 5488–5497, December 2018.

[J76]  M. Gao, C. Li, and Z. Xu, “Optimal transmission of VLC system in the presence of LED nonlinearity and APD module saturation,” IEEE Photonics Journal, vol. 10, no. 5, Article #7907514, pp. 1-14, October 2018.

[J77]  H. Chen and Z. Xu, “A two-dimensional constellation design method for visible light communications with signal-dependent shot noise,” IEEE Communications Letters, vol. 22, no. 9, pp. 1786-1789, September 2018.

[J78]  G. Wang, C. Gong, and Z. Xu, “Signal characterization for multiple access non-line of sight scattering communication,” IEEE Transactions on Communications, vol. 66, no. 9, pp. 4138-4154, September 2018.

[J79]  C. Gong, Q. Gao, and Z. Xu, “Signal detection for superposition transmission protocols for optical wireless scattering broadcast channel,” IEEE Transactions on Wireless Communications, vol. 17, no. 8, pp. 5480-5493, August 2018.

[J80]  P. Wang, C. Li, and Z. Xu, “A cost-efficient real-time 25Mb/s system for LED-UOWC: Design, channel coding, FPGA implementation, and characterization,” IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 13, pp. 2627-2637, July 2018.

[J81]  D. Zou, C. Gong, and Z. Xu, “Signal detection under short-interval sampling of continuous waveforms for optical wireless scattering communication,” IEEE Transactions on Wireless Communications, vol. 17, no. 5, pp. 3431-3443, May 2018.

[J82]  C. Gong, Z. Xu, and J. Zhu, “Parallel channel over wide spectrum: Modeling, mining and matching-based transmission optimization,” IEEE Transactions on Wireless Communications, vol. 17, no. 5, pp. 3373-3385, May 2018.

[J83]  S. Hu, Q. Gao, C. Gong, and Z. Xu, “Efficient visible light sensing in eigenspace,” IEEE Communications Letters, vol. 22, no. 5, pp. 994-997, May 2018.

[J84]  X. Liu, C. Gong, B. Liu, S. Li, and Z. Xu, “Hidden Markov model-based signal characterization for weak light communication,” IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 9, pp. 1730-1738, May 2018.

[J85]  C. Gong, K. Wang, Z. Xu, and X. Wang, “On full-duplex relaying for optical wireless scattering communication,” IEEE Transactions on Wireless Communications, vol. 17, no. 4, pp. 2525-2538, April 2018.

[J86]  G. Wang, K. Wang, C. Gong, D. Zou, Z. Jiang, and Z. Xu, “A 1Mbps real-time NLOS UV scattering communication system with receiver diversity over 1km,” IEEE Photonics Journal, vol. 10, no. 2, Article #7903013, pp. 1-13, April 2018.

[J87]  H. Chen and Z. Xu, “OLED panel radiation pattern and its impact on VLC channel characteristics,” IEEE Photonics Journal, vol. 10, no.2, Article #7901410, pp. 1-10, April 2018.

[J88]  H. Chen, Z. Xu, Q. Gao, and S. Li, “A 51.6 Mbps experimental VLC system using a monochromic organic LED,” IEEE Photonics Journal, vol. 10, no. 2, Article # 7901312, pp. 1-12, April 2018.

[J89]  D. Zou, C. Gong, and Z. Xu, “Secrecy rate of MISO optical wireless scattering communications,” IEEE Transactions on Communications, vol. 66, no. 1, pp. 225-238, January 2018.

[J90]  R. Zhang, M. Biagi, L. Lampe, T. D. C. Little, S. Mangold, and Z. Xu, “Guest editorial: Localisation, communication and networking with VLC,” IEEE J. Selected Areas in Communications, vol. 36, no. 1, pp. 1–7, January 2018.

[J91]  S. Lou, C. Gong, N. Wu, and Z. Xu, “Power optimization under brightness and communication requirements for visible light communication based on MacAdam ellipse,” Journal of Communications and Information Networks, vol. 2, no. 4, pp. 28-35, December 2017.

[J92]  K. Zhou, C. Gong, and Z. Xu, “Color planning and intercell interference coordination for multicolor visible light communication networks,” IEEE/OSA Journal of Lightwave Technology, vol. 35, no. 22, pp. 4980-4993, November 2017.

[J93]  X. Liu, C. Gong, and Z. Xu, “Sequential detection for optical wireless scattering communication,” OSA/IEEE Journal of Optical Communications and Networking, vol. 9, no. 9, pp. D86-D95, September 2017.

[J94]  K. Zhou, C. Gong, N. Wu, and Z. Xu, “Distributed channel allocation and rate control for hybrid FSO/RF vehicular ad hoc networks,” OSA/IEEE Journal of Optical Communications and Networking, vol. 9, no. 8, pp. 669-681, August 2017.

[J95]  Y. Sun, C. Gong, Z. Xu, and Y. Zhan, “Link gain and pulse width broadening evaluation of non-line-of-sight optical wireless scattering communication over broad spectra,” IEEE Photonics Journal, vol. 9, no. 3, Article # 7900212, pp. 1-12, July 2017.

[J96]  K. Wang, C. Gong, D. Zou, and Z. Xu, “Turbulence channel modeling and non-parametric estimation for optical wireless scattering communication,” IEEE/OSA Journal of Lightwave Technology, vol. 35, no. 13, pp. 2746-2756, July 2017.

[J97]  S. Lou, C. Gong, N. Wu, and Z. Xu, “Joint dimming and communication design for visible light communication,” IEEE Communications Letters, vol. 21, no. 5, pp. 1043-1046, May 2017.

[J98]  Q. Gao, C. Gong, and Z. Xu, “Joint transceiver and offset design for visible light communications with input-dependent shot noise,” IEEE Transactions on Wireless Communications, vol. 16, no. 5, pp. 2736-2747, May 2017.

[J99]  X. Zhang, Q. Gao, C. Gong, and Z. Xu, “User grouping and power allocation for NOMA visible light communication multi-cell networks,” IEEE Communications Letters, vol. 21, no. 4, pp. 777-780, April 2017.

[J100]B. Zhang, C. Gong, Q. Gao, and Z. Xu, “Two-way relay protocol for optical wireless scattering communication,” IEEE Communications Letters, vol. 21, no. 4, pp. 913-916, April 2017.

[J101]S. Li, C. Gong, P. Wang, and Z. Xu, “Lens design for indoor MIMO visible light communications,” Elsevier Optics Communications, vol. 389, pp. 224-229, April 2017.

[J102]W. Huang and Z. Xu, “Characteristics and performance of image sensor communication,” IEEE Photonics Journal, vol. 9, no. 2, Article # 7902919, pp. 1-19, April 2017.

[J103]K. Wang, C. Gong, D. Zou, X. Jin, and Z. Xu, “Demonstration of a 400kbps real-time NLOS LD-based ultraviolet communication system over 500 meters,” Chinese Optics Letters, vol. 15, no. 4, pp. 040602, April 2017.

[J104]C. Gong, Q, Gao, L. Hanzo, and Z. Xu, “Power optimization for multiple QoS, delay, and BER classes relying on finite-delay information theory,” Journal of Communications and Information Networks, vol. 2, no. 1, pp. 33-40, March 2017.

[J105]  R. Wang, Q. Gao, J. You, E. Liu, P. Wang, Z. Xu, and Y. Hua, “Linear transceiver designs for indoor MIMO visible light communications under lighting constraints,” IEEE Transactions on Communications, vol. 65, no. 6, pp. 2494-2508, February 2017.

[J106]Q. Gao, S. Hu, C. Gong, and Z. Xu, “Modulation designs for visible light communications with signal-dependent noise,” IEEE/OSA Journal of Lightwave Technology, vol. 34, no. 23, pp. 5516-5525, December 2016.

[J107]C. Gong, Z. Xu, and B. Huang, “Correlation and outage probability of NLOS SIMO optical wireless scattering communication channels under turbulence,” OSA/IEEE Journal of Optical Communications and Networking, vol. 8, no. 12, pp. 928-937, December 2016.

[J108]C. Gong, X. Zhang, Z. Xu, and L. Hanzo, “Optical wireless scattering channel estimation for photon-counting and photomultiplier tube receivers,” IEEE Transactions on Communications, vol. 64, no. 11, pp. 4749-4763, November 2016.

[J109]W. Huang, P. Tian, and Z. Xu, “Design and implementation of a real-time CIM-MIMO optical camera communication system,” Optics Express, vol. 24, no. 21, pp. 24567-24579, October 2016.

[J110]D. Zou and Z. Xu, “Information security risks outside the laser beam in terrestrial free-space optical communication,” IEEE Photonics Journal, vol. 8, no. 5, Article # 7804809, pp. 1-9, October 2016.

[J111]W. Li, S. Li, L. Duan, H. Chen, L. Wang, G. Dong, and Z. Xu, “Squarylium and rubrene based filterless narrowband photodetectors for an all-organic two-channel visible light communication system,” Organic Electronics, vol. 37, pp. 346-351, October 2016.

[J112]X. Liu, C. Gong, S. Li, and Z. Xu, “Signal characterization and receiver design for visible light communication under weak illuminance,” IEEE Communications Letters, vol. 20, no. 7, pp. 1349-1352, July 2016.

[J113]J. Ding, Chih-Lin I, and Z. Xu, “Indoor optical wireless channel characteristics with distinct source radiation patterns,” IEEE Photonics Journal, vol. 8, no. 1, Article # 7900115, pp. 1-15, February 2016.

[J114]J. Jiang, Y. Huo, F. Jin, P. Zhang, Z. Wang, Z. Xu, H. Haas, and L. Hanzo, “Video streaming in the multiuser indoor visible light downlink,” IEEE Access, vol. 3, pp. 2959-2986, January 2016.

[J115]X. Li, F. Jin, R. Zhang, J. Wang, Z. Xu, and L. Hanzo, “Users first: User-centric cluster formation for interference-mitigation in visible-light networks,” IEEE Transactions on Wireless Communications, vol. 15, no. 1, pp. 39-53, January 2016.

[J116]C. Gong and Z. Xu, “LMMSE SIMO receiver for short-range non-line-of-sight scattering communication,” IEEE Transactions on Wireless Communications, vol. 14, no. 10, pp. 5338 – 5349, October 2015.

[J117]C. Gong and Z. Xu, “Channel estimation and signal detection for optical wireless scattering communication with inter-symbol interference,” IEEE Transactions on Wireless Communications,” vol. 14, no. 10, pp. 5326 – 5337, October 2015.

[J118]C. Gong and Z. Xu, “Temporal spectrum sensing for optical wireless scattering communications,” IEEE/OSA Journal of Lightwave Technology, vol. 33, no. 18, pp. 3890 – 3900, Sept. 2015.

[J119]Z. Ghassemlooy, S. Arnon, M. Uysal, Z. Xu, and J. Cheng, “Emerging optical wireless communications – advances and challenges,” IEEE J. Selected Areas in Communications, vol. 33, no. 9, pp. 1738 – 1749, Sept. 2015.

[J120]S. Arnon, M. Uysal, Z. Ghassemlooy, Z. Xu, and J. Cheng, “Guest editorial: Optical wireless communications,” IEEE J. Selected Areas in Communications, vol. 33, no. 9, pp. 1733 – 1737, Sept. 2015.

[J121]P. Wang, H. Zhang, and Z. Xu, “A simplified model and experimental validation for ultraviolet single scattering channels,” Chinese Optics Letters, vol. 13, no. 8, pp. 080603-1-080603-5, Aug. 2015.

[J122]J. Ding, Z. Xu, and L. Hanzo, “Accuracy of the point-source model of a multi-LED array in high-speed visible light communication channel characterization,” IEEE Photonics Journal, vol. 7, no. 4, Article # 1600714, pp. 1-14, Aug. 2015.

[J123]C. Gong, S. Li, Q. Gao, and Z. Xu, “Power and rate optimization for visible light communication system with lighting constraints,” IEEE Transactions on Signal Processing, vol. 63, no. 16, pp. 4245–4256, Aug. 2015.

[J124]W. Huang, C. Gong, and Z. Xu, “System and waveform design for wavelet packet division multiplexing-based visible light communications,” IEEE/OSA Journal of Lightwave Technology, vol. 33, no. 14, pp. 3041–3051, Jul. 2015.

[J125]Q. Gao, R. Wang, Z. Xu, and Y. Hua, “DC-informative joint color-frequency modulation for visible light communications,” IEEE/OSA Journal of Lightwave Technology, vol. 33, no. 11, pp. 2181-2188, June 2015.

[J126]W. Liu, Z. Xu, and L. Yang, “SIMO detection schemes for underwater optical wireless communication under turbulence,” OSA Photonics Research, vol. 3, no. 3, pp. 48-53, June 2015.

[J127]X. Song, F. Yang, J. Cheng, N. Al-Dhahir, and Z. Xu, “Subcarrier phase-shift keying systems with phase errors in lognormal turbulence channels,” IEEE/OSA Journal of Lightwave Technology, vol. 33, no. 9, pp. 1896-1904, May 2015.

[J128]Q. Gao, C. Gong, S. Li, and Z. Xu, “DC-informative visible light communications under lighting constraints,” IEEE Wireless Communications, vol. 22, no. 2, pp. 54-60, April 2015.

[J129]R. Zhang, J. Wang, Z. Wang, Z. Xu, C. Zhao, and L. Hanzo, “Visible light communications in heterogeneous networks: paving the way for user-centric design,” IEEE Wireless Communications, vol. 22, no. 2, pp. 8-16, April 2015.

[J130]W. Liu, D. Zou, and Z. Xu, “Modeling of optical wireless scattering communication channels over broad spectra,” Journal of the Optical Society of America A, vol. 32, no. 3, pp. 486-490, March 2015.

[J131]C. Gong and Z. Xu, “Non-line of sight optical wireless relaying with the photon counting receiver: A count-and-forward protocol,” IEEE Trans. on Wireless Communications, vol. 14, no. 1, pp. 376-388, January 2015.

[J132]W. Liu and Z. Xu, “Special Smith-Purcell radiation from open resonators array,” New Journal of Physics, vol. 16, no. 7, pp. 073006, July 2014.

[J133]X. Tang, Z. Wang, Z. Xu, and Z. Ghassemlooy, “Multihop free-space optical communications over turbulence channels with pointing errors and heterodyne detection,” IEEE/OSA Journal of Lightwave Technology, vol. 32, no. 15, pp. 2597-2604, Aug. 2014.

[J134]S.-B. Li and Z. Xu, “Signature candidate of quantum chaos far from the semiclassical regime,” CHAOS, vol. 24, pp. 013127, March 4, 2014.

[J135]W. Liu and Z. Xu, “Simulations of table-top watt-class 1-THz radiation sources with two-section periodic structure,” J. Applied Physics, vol. 115, no. 1, pp. 014503-1, January 7, 2014.

[J136]L. Dai, Z. Xu, and Z. Wang, “Flexible multi-block OFDM transmission for high-speed fiber-wireless networks,” IEEE Journal on Selected Areas in Communications, vol. 31, no. 12, pp. 788-796, December 2013.

[J137]X. Tang, Z. Xu, and Z. Ghassemlooy, “Coherent polarization modulated transmission through MIMO atmospheric optical turbulence channel,” IEEE/OSA Journal of Lightwave Technology, vol. 31, no. 20, pp. 3221-3228, October 2013.

[J138]P. Wang and Z. Xu, “Characteristics of ultraviolet scattering and turbulent channels,” Optics Letters, vol. 38, no. 15, pp. 2773-2775, August 2013.

[J139]K. Cui, J. Quan, and Z. Xu, “Performance of indoor optical femtocell by visible light communication,” Elsevier Optics Communications, vol. 298–299, pp. 59–66, July 2013.

[J140]L. Dai, C. Zhang, Z. Xu, and Z. Wang, “Spectrum-efficient coherent optical OFDM for transport networks,” IEEE Journal on Selected Areas in Communications: Special Issue on Next-Generation Spectrum-Efficient and Elastic Optical Transport Networks, vol. 31, no. 1, pp. 62-74, Jan. 2013.

[J141]K. Cui, G. Chen, Z. Xu, and R. D. Roberts, “Traffic light to vehicle VLC channel characterization,” Applied Optics, vol. 51, no. 27, pp. 6594-6605, September 2012.

[J14]2N. Liu, Z. Xu, and B. Sadler, “Geolocation performance with biased range measurements,” IEEE Trans. on Signal Processing, vol. 60, no. 5, pp. 2315-2329, May 2012.

[J143]H. Ding, G. Chen, Z. Xu, and B. M. Sadler, “Channel modeling and performance of non-line-of-sight ultraviolet scattering communications,” IET Communications, vol. 6, no. 5, pp. 514-524, March 2012.

[J144]Y. Li, L. Wang, Z. Xu, and S. V. Krishnamurthy, “Neighbor discovery for ultraviolet ad hoc networks,” IEEE Journal on Selected Areas in Communications, vol. 29, no. 10, pp. 2002-2011, December 2011.

[J145]W. Lee, D. Yoon, and Z. Xu, “Effects of multiple antennas on outage performance of decode-and-forward cooperative networks with relay selection,” IEICE Trans. on Communications, vol. E94-B, no.11, pp. 3155-3159, November 2011.

[J146]L. Wang, Y. Li, and Z. Xu, “On connectivity of wireless ultraviolet networks,” J. Opt. Soc. Am. A (JOSA A), vol. 28, no. 10, pp. 1970-1978, October 2011.

[J147]H. Hassania, Z. Xu, and A. Zhigljavsky, “Singular spectrum analysis based on the perturbation theory,” Nonlinear Analysis: Real World Applications, vol. 12, no. 5, pp. 2752–2766, October 2011.

[J148]L. Wang, Z. Xu, and B. M. Sadler, “An approximate closed-form link loss model for non-line-of-sight ultraviolet communication in noncoplanar geometry,” Optics Letters, vol. 36, no. 7, pp. 1224–1226, April 2011.

[J149]L. Zhu, Y. Pei, N. Ge, J. Lu, and Z. Xu, “A signal subspace detection technique for single carrier block transmission with unique words,” IEEE Communications Letters, vol. 15, no. 2, pp. 151-153, February 2011.

[J150]H. Ding, G. Chen, Arun K. Majumdar, Brian M. Sadler, Zhengyuan Xu: “Correction to ‘Modeling of Non-Line-of-Sight Ultraviolet Scattering Channels for Communication’,” IEEE Journal on Selected Areas in Communications, vol. 29, no. 1, p. 250, January 2011.

[J151]N. Liu, Z. Xu, and B. M. Sadler, “Ziv-Zakai time delay estimation bounds for frequency-hopping waveforms under frequency-selective fading,” IEEE Trans. on Signal Processing, vol. 58, no. 12, pp. 6400--6406, December 2010.

[J152]H. Ding, Z. Xu, and B. M. Sadler, “A path loss model for non-line-of-sight ultraviolet multiple scattering channels,” EURASIP Journal on Wireless Communications and Networking: Special Issue on Optical Wireless Communications and Networking, vol. 2010, Article ID 598572, pp. 1-12, June 2010.

[J153]Q. He, Z. Xu, and B. M. Sadler, “Performance of short-range non-line-of-sight LED-based ultraviolet communication receivers,” Optics Express, vol. 18, no. 12, pp.  12226-12238, June 2010.

[J154]G. Chen, Z. Xu, and B. M. Sadler, “Experimental demonstration of ultraviolet pulse broadening in short-range non-line-of-sight communication channels,” Optics Express, vol. 18, no. 10, pp. 10500-10509, May 2010.

[J155]B. M. Sadler, N. Liu, and Z. Xu, “Ziv-Zakai bounds on time delay estimation in unknown convolutive random channels,” IEEE Trans. on Signal Processing, vol. 58, no. 5, pp. 2729-2745, May 2010.

[J156]L. Wang, Z. Xu, and B. M. Sadler, “Non-line-of-sight ultraviolet link loss in noncoplanar geometry,” Optics Letters, vol. 35, no. 8, pp. 1263-1265, April 2010.

[J157]H. Ding, G. Chen, A. Majumdar, B. M. Sadler, and Z. Xu, “Modeling of non-line-of-sight ultraviolet scattering channels for communication,” IEEE Journal on Selected Areas in Communications: Special Issue on Optical Wireless Communications, vol. 27, no. 9, pp. 1535-1544, December 2009.

[J158]G. Chen, Z. Xu, H. Ding, and B. M. Sadler, “Path loss modeling and performance trade-off study for short-range non-line-of-sight ultraviolet communications,” Optics Express, vol. 17, no. 5, pp. 3929-3940, March 2009.

[J159]N. Liu, Z. Xu, and B. M. Sadler, “Low complexity hyperbolic source localization with a linear sensor array,” IEEE Signal Processing Letters, vol. 15, pp. 865-868, November 2008.

[J160]G. Chen, F. Abou-Galala, Z. Xu, and B. M. Sadler, “Experimental evaluation of LED-based solar blind NLOS communication links,” Optics Express, vol. 16, no. 19, pp. 15059-15068, September 2008.

[J161]Z. Xu, H. Ding, B. M. Sadler, and G. Chen, “Analytical performance study of solar blind non-line-of-sight ultraviolet short-range communication links,” Optics Letters, vol. 33, no. 16, pp. 1860-1862, August 2008.

[J162]Z. Xu and B. M. Sadler, “Ultraviolet communications: potential and state-of-the-art,” IEEE Communications Magazine, vol. 46, no. 5, pp. 67-73, May 2008.

[J163]F. Sun, Victor O. K. Li, Z. Diao, and Z. Xu, “Medium access control with physical layer assisted link differentiation,” IEEE Trans. on Vehicular Technology, vol. 57, no. 2, pp. 1255-1271, March 2008.

[J164]P. Liu and Z. Xu, “Blind MMSE-constrained multiuser detection,” IEEE Trans. on Vehicular Technology, vol. 57, no. 1, pp. 608-615, January 2008.

[J165]Z. Xu and B. M. Sadler, “Time delay estimation bounds in convolutive random channels,” IEEE Journal of Selected Topics in Signal Processing: Special Issue on Performance Limits of Ultra-Wideband Systems, vol. 1, no. 3, pp. 418-430, October 2007.

[J166]J. Tang and Z. Xu, “A novel modulation diversity assisted ultrawideband communication system,” IEEE Trans. on Signal Processing,vol. 55, no. 8, pp. 4227-4240, August 2007.

[J167]J. Tang, Z. Xu, and B. M. Sadler, “Performance analysis of b-bit digital receivers for TR-UWB systems with inter-pulse interference,” IEEE Trans. on Wireless Communications, vol. 6, no. 2, pp. 494-505, February 2007.

[J168]Z. Xu and J. Tang, “Blind channel estimation in aperiodic time hopping ultra-wideband communications,” IEEE Trans. on Signal Processing,vol. 54, no. 6, Part 1, pp. 2333-2346, June 2006.

[J169]Z. Xu and B. M. Sadler, “Multiuser transmitted reference ultra-wideband communication systems,” IEEE Journal on Selected Areas in Communications: Special Issue on Ultra Wideband Wireless Communications - Theory and Applications,vol. 24, no. 4, Part 1, pp. 766-772, April 2006.

[J170]P. Liu and Z. Xu, “POR-based channel estimation for UWB communications,” IEEE Trans. on Wireless Communications, vol. 4, no. 6, pp. 2968-2982, November 2005.

[J171]Z. Xu, P. Liu, and J. Tang, “A subspace approach to blind multiuser detection for ultra-wideband communication systems,” EURASIP Journal on Applied Signal Processing: Special Issue on UWB - State of the Art, vol. 2005, no. 3, pp. 413-425, March 2005.

[J172]Z. Xu, J. Tang, and P. Liu, “Multiuser channel estimation for ultra-wideband systems using up to the second order statistics,” EURASIP Journal on Applied Signal Processing: Special Issue on UWB - State of the Art, vol. 2005, no. 3, pp. 273-286, March 2005.

[J173]Z. Xu, “Effects of imperfect blind channel estimation on performance of linear CDMA receivers,” IEEE Trans. on Signal Processing, vol. 52, no. 10, pp. 2873-2884, October 2004.

[J174]Z. Xu and X. Wang, “Large-sample performance of blind and group-blind multiuser detectors: a perturbation perspective,” IEEE Trans. on Information Theory, vol. 50, no. 10, pp. 2389-2401, October 2004.

[J175]P. Liu and Z. Xu, “Joint performance study of channel estimation and multiuser detection for uplink long-code CDMA systems,” EURASIP Journal on Wireless Communications and Networking: Special Issue on Innovative Signal Transmission and Detection Techniques for Next Generation Cellular CDMA System, vol. 2004, no. 1, pp. 98-112, August 2004.

[J176]Z. Xu, “Statistical performance of a data-based covariance estimator,” IEEE Trans. on Vehicular Technology, vol. 53, no. 3, pp. 939-943, May 2004.

[J177]Z. Xu, P. Liu, and X. Wang, “Blind multiuser detection: from MOE to subspace methods,” IEEE Trans. on Signal Processing, vol. 52, no. 2, pp. 510-524, February 2004.

[J178]Z. Xu, P. Liu, and M. Zoltowski, “Diversity assisted channel estimation and multiuser detection for downlink CDMA with long spreading codes,” IEEE Trans. on Signal Processing, vol. 52, no. 1, pp. 190-201, January 2004.

[J179]Z. Xu and P. Liu, “Blind multiuser detection by kurtosis maximization/minimization,” IEEE Signal Processing Letters, vol. 11, no. 1, pp. 1-4, January 2004.

[J180]C. Kim, Z. Xu, and H. J. Kim, “Sliding multiple phase differential detection of trellis-coded MDPSK-OFDM,” IEICE Trans. Communications: Joint Special Issue on Recent Progress in Optoelectronics and Communications, vol. E86-B, no. 5, pp. 1591-1600, May 2003.

[J181]Z. Xu, “On the second-order statistics of the weighted sample covariance matrix,” IEEE Trans. on Signal Processing, vol. 51, no. 2, pp. 527-534, February 2003.

[J182]Z. Xu and P. Liu, “Code constrained blind detection of CDMA signals in multipath channels,” IEEE Signal Processing Letters, vol. 9, no. 12, pp. 389-392, December 2002.

[J183]Z. Xu, “Further study on MOE-based multiuser detection in unknown multipath,” EURASIP Journal on Applied Signal Processing: Multiuser Detection and Blind Estimation, pp. 1377-1386, December 2002.

[J184]Z. Xu, “Perturbation analysis for subspace decomposition with applications in subspace-based algorithms,” IEEE Trans. on Signal Processing, vol. 50, no. 11, pp. 2820-2830, November 2002.

[J185]Z. Xu, “Performance analysis of blind channel estimation for precoded multiuser systems,” Journal of Communications and Networks, vol. 4, no. 3, pp. 189-198, September 2002.

[J186]Z. Xu, “Asymptotic performance of subspace methods for synchronous multirate CDMA systems,” IEEE Trans. on Signal Processing, vol. 50, no. 8, pp. 2015-2026, August 2002.

[J187]Z. Xu, “Low complexity multiuser channel estimation with aperiodic spreading codes,” IEEE Trans. on Signal Processing, vol. 49, no. 11, pp. 2813-2822, November 2001.

[J188]Z. Xu, “Improved constraint for multipath mitigation in constrained MOE multiuser detection,” Journal of Communications and Networks: Signal Processing for Multiuser Wireless Communications, vol. 3, no. 3, pp. 249-256, September 2001.

[J189]Z. Xu, “Asymptotically near-optimal blind estimation of multipath CDMA channels,” IEEE Trans. on Signal Processing, vol. 49, no. 9, pp. 2003-2017, September 2001.

[J190]Z. Xu, “Blind identification of co-existing synchronous and asynchronous users for CDMA systems,” IEEE Signal Processing Letters, vol. 8, no. 7, pp. 212-214, July 2001.

[J191]Z. Xu and M. Tsatsanis, “Blind adaptive algorithms for minimum variance CDMA receivers,” IEEE Trans. on Communications, vol. 49, no. 1, pp. 180-194, January 2001.

[J192]M. Tsatsanis and Z. Xu, “Pilot symbol assisted modulation in frequency selective fading wireless channels,'' IEEE Trans. on Signal Processing, vol. 48, no. 8, pp. 2353-2365, August 2000.

[J193]Z. Xu and M. Tsatsanis, “Blind channel estimation for long code multiuser CDMA systems,” IEEE Trans. on Signal Processing, vol. 48, no. 4, pp. 988-1001, April 2000.

[J194]M. Tsatsanis and Z. Xu, “Constrained optimization methods for direct blind equalization,” IEEE Journal on Selected Areas in Communications: Special Issue on Wireless Communications Series, vol. 17, no. 3, pp. 424-433, March 1999.

[J195]Z. Xu and M. Tsatsanis, “Adaptive minimum variance methods for direct blind multichannel equalization,” EURASIP Signal Processing, vol. 73, no. 1-2, pp. 125-138, February 1999.

[J196]M. Tsatsanis and Z. Xu, “Performance analysis of minimum variance CDMA receivers,” IEEE Trans. on Signal Processing, vol. 46, no. 11, pp. 3014-3022, November 1998.

Conference Papers (in reverse chronological order)

[C1]    J. Wang, W. Liu, N. Huang, Z. Xu, and Y. Chen, “Design and implementation of automatic beam alignment system for LD-PMT based UOWC,” IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, 24–27 March 2025.

[C2]    T. Wang, W. Liu, N. Huang, Z. Xu, and Y. Chen, “Amplitude determined pulse counting based wide dynamic range signal detection for UOWC with PMT detector,” 16th International Conference on Wireless Communications and Signal Processing (WCSP 2024), Hefei, China, October 24-26, 2024.

[C3]    J. Lu, N. Huang, W. Liu, and Z. Xu, “LDA-based signal detection method for underwater optical wireless communication system with PMT receiver,” 16th International Conference on Wireless Communications and Signal Processing (WCSP 2024), Hefei, China, October 24-26, 2024.

[C4]    W. Xu, W. Liu, N. Huang, and Z. Xu, “Optical wireless communication with DV-QKD on single wavelength,” 12th International Conference on Information, Communication and Networks (ICICN), Guilin, Guangxi, China, August 21-24, 2024.

[C5]    S. Chen, W. Liu, N. Huang, and Z. Xu, “A Real-time MEMS mirror based tracking system for optical wireless communication,” 12th International Conference on Information, Communication and Networks (ICICN), Guilin, Guangxi, China, August 21-24, 2024.

[C6]    Z. Wei, N. Huang, W. Liu, and Z. Xu, “A PCA-based material color classification method via LED sensing,” IEEE 12th International Conference on Information, Communication and Networks (ICICN), Guilin, Guangxi, China, August 21-24, 2024.

[C6]    Y. Yang, Y. Ren, C. Gong, N. Huang, and Z. Xu, “Secrecy Performance Based on Parameter Estimation for Ultra-Violet Communication System,” IEEE 12th International Conference on Information, Communication and Networks (ICICN), Guilin, Guangxi, China, August 21-24, 2024.

[C8]    Y. Ren, Y. Yang, C. Gong, and Z. Xu, “Signal detection in asynchronous CDMA communication for ultraviolet communication,” 14th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing(CSNDSP), Rome, Italy, July 17-19, 2024.

[C9]    Y. Pan, Y. Zhang, F. Long, P. Li, H. Shi, H. Xiao, C. Gong, and Z. Xu, “Beacon-enabled TDMA ultraviolet communication network design and realization,”14th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing(CSNDSP), Rome, Italy, July 17-19, 2024.

[C10]  Y. Zhou, N. Huang, and Z. Xu, “Resource allocation for cooperative transmission in multi-tier VLC networks with M-QAM and clipping distortion,” IEEE VTC Workshop on Optical Wireless Communications, Singapore, June 24-27, 2024.

[C11]  Y. Huang, N. Huang, W. Liu, and Z. Xu, “Tree search based symbol detection for multi-band Petahertz communication with adjacent-band crosstalk,” 15th International Conference on Wireless Communications and Signal Processing (WCSP), Hangzhou, China, November 2-4, 2023.

[C12]  W. Liu, Z. Ye, N. Huang, and Z. Xu, “Rotational misalignment compensation for underwater optical wireless communication employing quaternary polarization shift keying modulation,” 15th International Conference on Wireless Communications and Signal Processing (WCSP), Hangzhou, China, November 2-4, 2023.

[C13]  X. Chen, W. Liu, N. Huang, and Z. Xu, “Experimental investigation of user identification and delay estimation for asynchronous CDMA-based UOWC,” 9th International Conference on Information, Communication and Networks  (ICICN), Xi'an, China, August 19-22, 2023.

[C14]  J. Zhang, W. Liu, N. Huang, and Z. Xu, “Hybrid MAC protocol with dynamic resource allocation for underwater optical wireless networks,” 9th International Conference on Information, Communication and Networks  (ICICN), Xi'an, China, August 19-22, 2023.

[C15]  Q. Sun, N. Huang, W. Liu, and Z. Xu, “A robust receiver comprising turbid water for LD-based UOWC system,” 9th International Conference on Information, Communication and Networks  (ICICN), Xi'an, China, August 19-22, 2023.

[C16]  L. Sun, C. Gong, Z. Xu, “A multi-ring transmission strategy for ultraviolet communication networks,” IEEE/CIC International Conference on Communications in China (ICCC), Workshop on Optical Wireless Communications for 6G, WLANS and Beyond, Dalian, China, August 10–12, 2023.

[C17]  W. Yuan, W. Liu, N. Huang, and Z. Xu, “Experimental saturation characteristics of PMT from DC to 1GHz and adaptive compensation algorithm for high-speed UOWC,” 15th International Conference on Communication Software and Networks (ICCSN), Shenyang, China, July 21-23, 2023.

[C18]  S. Zhang, W. Liu, N. Huang, and Z. Xu, “Backscattering interference cancellation for co-frequency and full-duplex UOWC,” 15th International Conference on Communication Software and Networks (ICCSN), Shenyang, China, July 21-23, 2023.

[C19]  X. Zhang, W. Liu, N. Huang and Z. Xu, “Backscattering interference channel characteristics in full-duplex underwater optical wireless communication,” 15th International Conference on Communication Software and Networks (ICCSN), Shenyang, China, July 21-23, 2023.

[C20]  L. Zhang, W. Liu, N. Huang, S. Li, and Z. Xu, “Wide dynamic range signal detection for underwater optical wireless communication using a pulse counting receiver,” IEEE Wireless Communications and Networking Conference (WCNC), Glasgow, Scotland, UK, March 26-29, 2023.

[C21]  Y. Ding, H. Yu, M. H. Memon, C. Gong, H. Sun, Z. Xu, “Demonstration of 20 Mbps LED ultraviolet-C communication over medium distance with photon receiver,”13th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Porto, Portugal, July 20-22, 2022.

[C22]  Y. Zhu, N. Huang, W. Liu, S. Li, and Z Xu, “A novel frame synchronization scheme for underwater optical wireless communication with reduced complexity,” 13th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Porto, Portugal, July 20-22, 2022.

[C23]  Y. Jiang, W. Liu, and Z. Xu, “Positioning error analysis and experiments on underwater optical wireless communication induced by light beam bending,” The 2022 IEEE 95th Vehicular Technology Conference: VTC2022-Spring, Helsinki, Finland, June 19-22, 2022.

[C24]  Y. Zhou, B. Cheng, J. Lei, N. Wu, and Z. Xu, “Statistical channel and resource allocation analysis for a two-AP VLC system with cell overlap and uniform user distribution,” 2021 IEEE The 9th International Conference on Information, Communication and Networks (ICICN), Xi'an, China, November 25-28, 2021.

[C25]  Z. Ye, W. Liu, W. Jiang, S. Li, and Z. Xu, “Experimental investigation of polarization shift keying in underwater optical wireless communication under turbulence,” The 13th International Conference on Wireless Communications and Signal Processing (WCSP), Changsha, Hubei, China, October 20-22, 2021.

[C26]  Q. Hu, C. Gong, N. Huang, Z. Xu, and J. Luo, “Impact of scattering on communication and secrecy performance over underwater quantum links,” The 13th International Conference on Wireless Communications and Signal Processing (WCSP), Changsha, Hubei, China, October 20-22, 2021.

[C27]  F. Fu, C. Gong, N. Huang, J. Luo, and Z. Xu, “Concatenated RS-LDPC coding for water-to-air visible light communication through wavy water surface,” The 13th International Conference on Wireless Communications and Signal Processing (WCSP), Changsha, Hubei, China, October 20-22, 2021.

[C28]  N. Huang, C. Gong, C. Fu, T. Wei, and Z. Xu, “Preliminary investigation of air-to-water visible light communication link under strong ambient light,” IEEE VTC Fall, September 27-30, 2021.

[C29]  J. He, X. Jin, C. Gong, N. Huang, and Z. Xu, “Indoor 3D visible light positioning with millimeter accuracy based on dual cameras,” IEEE VTC Fall, September 27-30, 2021.

[C30]  W. Jiang, W. Liu, and Z. Xu “Experimental investigation of turbulence channel characteristics for underwater optical wireless communications,” 2021 IEEE/CIC International Conference on Communications in China (ICCC), Xiamen, China, July 28–30, 2021.

[C31]  C. Tu, W. Liu, W. Jiang, and Z. Xu, “First demonstration of 1Gb/s PAM4 signal transmission over a 130m underwater optical wireless communication channel with digital equalization,” 2021 IEEE/CIC International Conference on Communications in China (ICCC), Xiamen, China, July 28–30, 2021.

[C32]  Z. Yu, C. Gong, J. Wei, N. Huang, and Z. Xu, “3-Gb/s Visible light communication over 5 m distance based on imaging system with low transmission power and off-the-shelf LEDs,” 2021 International Wireless Communications and Mobile Computing Conference (IWCMC), Harbin, China, June 28-July 2, 2021.

[C33]  D. Guo, X. Jin, J. Deng, W. Liu, M. Jin, S. Li, C. Gong, and Z. Xu “Load balancing with soft handover for indoor hybrid VLC/WiFi networks,” Asia Communications and Photonics Conference (ACP), Beijing, China, October 24-27, 2020.

[C34]  S. Chang, C. Gong, N. Huang, and Z. Xu, “Indoor visible light communication scheduling for IOT scenarios with short blocklength,” IEEE/CIC International Conference on Communications in China (ICCC), Workshop on Optical Wireless Communications, Chongqing, China, August 9-11, 2020.

[C35]  T. Lin, C. Gong, J. Luo, and Z. Xu, “Dynamic optical wireless communication channel characterization through air-water interface,” IEEE/CIC International Conference on Communications in China (ICCC), Workshop on Optical Wireless Communications, Chongqing, China, August 9-11, 2020.

[C36]  X. Li, W. Liu, and Z. Xu, “Design and implementation of a rolling shutter based image sensor communication system,” IEEE/CIC International Conference on Communications in China (ICCC), Workshop on Optical Wireless Communications, Chongqing, China, August 9-11, 2020.

[C37]  S. Li, C. Gong, B. Huang, D. Zou, K. Wang, and Z. Xu, “Optical rogue waves in the non-line-of-sight scattering and turbulence channels,” IEEE/CIC International Conference on Communications in China (ICCC), Workshop on Optical Wireless Communications, Chongqing, China, August 9-11, 2020.

[C38]  H. He, C. Gong, J. Luo, and Z. Xu, “Third-order NLOS reflection sensing in ultraviolet spectrum,” 12th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Porto, Portugal, July 20-22, 2020.

[C39]  X. Zhang, S. Li, W. Liu, and Z. Xu, “Positioning of turbulence-distorted laser spot for underwater optical wireless communication,” 12th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Porto, Portugal, July 20-22, 2020.

[C40]  X. Ji, M. Jin, W. Liu, and Z. Xu, “Inter-cell interference suppression for MIMO-OFDM systems based on complex-valued neural network,” IEEE ICC Open Workshop on Machine Learning for Communications (ML4COM), Dublin, Ireland, June 7–11, 2020.

[C41]  W. Jiang, X. Jin, Y. Zhang, M. Jin, C. Gong, and Z. Xu, “Trajectory prediction of target light source for dynamic visible light communication systems with a narrow field of view,” IEEE ICC Workshop on Optical Wireless Communications, Dublin, Ireland, June 7–11, 2020.

[C42]  Y. Zhu, C. Gong, M. Jin, X. Jin, J. Luo, and Z. Xu, “Indoor non-line of sight visible light communication with a Bi-LSTM neural network,” IEEE ICC Workshop on Optical Wireless Communications, Dublin, Ireland, June 7–11, 2020.

[C43]  H. Qiao, C. Gong, W. Liu, and Z. Xu, “Simultaneous lightwave information and power transfer via scattering and line-of-sight links,” IEEE ICC Workshop on Optical Wireless Communications, Dublin, Ireland, June 7–11, 2020.

[C44]  H. Qi, D. Zou, C. Gong, and Z. Xu, “Two-dimensional intensity distribution and connectivity in ultraviolet ad-hoc network,” IEEE International Conference on Communications (ICC), Dublin, Ireland, June 7–11, 2020.

[C45]  B. Liu, C. Gong, J. Cheng, and Z. Xu, “Data-aided channel estimation for Poisson channels with inter-symbol interference,” IEEE International Conference on Communications (ICC), Dublin, Ireland, June 7–11, 2020.

[C46]  Y. Zhang, X. Jin, W. Jiang, X. Chen, and Z. Xu, “Experimental investigation of dynamic visible light communication system with automatic gain control,” Asia Communications and Photonics Conference (ACP), Chengdu, Sichuan, China, Nov. 2-5, 2019.

[C47]  Q. Hu, X. Jin, W. Liu, M. Jin, and Z. Xu, “Real-time OFDM receiver with robust frequency synchronization for visible light communication,” Asia Communications and Photonics Conference (ACP), Chengdu, Sichuan, China, Nov. 2-5, 2019.

[C48]  W. Liu, X. Jin, and Z. Xu, “Mitigation of strong solar radiation by attenuation diversity in vehicular visible light communication,” Asia Communications and Photonics Conference (ACP), Chengdu, Sichuan, China, Nov. 2-5, 2019.

[C49]  Z. Feng, S. Li, and Z. Xu, “A novel adaptive stochastic resonance scheme for underwater optical wireless communication,” The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C50]  M. Chen, X. Jin, and Z. Xu, “Investigation of convolution neural network-based wavefront correction for FSO systems,”The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C51]  C. Tu, W. Liu, and Z. Xu, “Mitigation of strong background radiation with attenuation diversity for vehicular visible light communication,”The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C52]  X. Ma, X. Jin, J. Deng, M. Jin, C. Gong, and Z. Xu, “Symbol-level precoding for multiuser visible light communication,”The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C53]  H. Liu, C. Gong, J. Luo, and Z. Xu, “Positioning error analysis of indoor visible light positioning using dual cameras,”The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C54]  S. Li, X. Jin, C. Gong, S. Liang, Q. Pan, and Z. Xu, “The LD and quantum dot-based white light sources for joint lighting and visible light communications,”The 11th International Conference on Wireless Communications and Signal Processing (WCSP), Xi’an, Shanxi, China, October 23-25, 2019.

[C55]  J. Zeng, C. Gong, S. Hu, and Z. Xu, “Indoor visible light sensing with sight blockage,” IEEE/CIC International Conference on Communications in China (ICCC), Changchun, China, August 11-13, 2019.

[C56]  R. Xu, C. Gong, and Z. Xu, “Pulse-laser based long-range NLOS ultraviolet communication: pulse response position estimation and frame synchronization optimization,” IEEE/CIC International Conference on Communications in China (ICCC), Changchun, China, August 11-13, 2019.

[C57]  C. Gong, Z. Xu, and H. Qiao, “Design and demonstration of target detection in the ultraviolet spectrum,” IEEE/CIC International Conference on Communications in China (ICCC), Changchun, China, August 11-13, 2019.

[C58]  S. Liang, S. Li, Q. Pan, and Z. Xu, “Self-powered weak light LED-LED communications,” The 15th International Conference on Telecommunications (ConTEL), Graz, Austria, July 3-5, 2019.

[C59]  J. Deng, X. Jin, X. Ma, M. Jin, C. Gong, and Z. Xu, “Graph-based scheduling for cooperative transmission in indoor VLC systems,” IEEE ICC Workshop on Optical Wireless Communications, Shanghai, China, May 24, 2019.

[C60]  H. Qi, C. Gong, and Z. Xu, “Omnidirectional antenna array-based transmitter direction sensing in ultra-violet ad-hoc scattering communication networks,” IEEE ICC Workshop on Optical Wireless Communications, Shanghai, China, May 24, 2019.

[C61]  Z. Jiang, C. Gong, G. Wang, and Z. Xu, “Achievable rate bounds on Poisson channel with a sample-based practical photon-counting receiver,” IEEE ICC Workshop on Optical Wireless Communications, Shanghai, China, May 24, 2019.

[C62]  Z. Jiang, C. Gong, and Z. Xu, “Statistical non-linear model and achievable rates for photon-level photomultiplier receiver,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C63]  G. Zheng, C. Gong, and Z. Xu, “Multi-layer coding and map-assisted partial group decoding for multi-color multi-user VLC,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C64]  B. Liu, C. Gong, J. Cheng, and Z. Xu, “Correlation-based LTI channel estimation for multi-wavelength optical scattering communication,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C65]  C. Gong, K. Deng, S. Zhang, J. Zhu, and Z. Xu, “Grouped content compression coding for wireless communications networks,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C66]  C. Peng and Z. Xu, “Vectorized color modulation for covert camera-screen communication,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C67]  R. Xu and Z. Xu, “LED-based vehicular visible light ranging,” IEEE International Conference on Communications, Shanghai, China, May 20-24, 2019.

[C68]  C. Lu, W. Jiang, S. Li, and Z. Xu, “60m/2.5Gbps underwater optical wireless communication with NRZ-OOK modulation and digital nonlinear equalization,” Proc. Conference on Lasers and Electro-Optics (CLEO), San Jose Convention Center, San Jose, CA, USA, May 5-10, 2019.

[C69]  F. Liu, X. Jin, W. Jiang, and Z. Xu, “Effective auto-alignment and tracking of transceivers for visible-light communication in data centres,” Proc. SPIE 10945, Broadband Access Communication Technologies XIII, 109450N, San Francisco, CA, USA, February 2–7, 2019.

[C70]  X. Li, Q. Gao, C. Gong, and Z. Xu, “Nonlinearity mitigation for VLC with an artificial neural network based equalizer,” 8th IEEE GLOBECOM Workshop on Optical Wireless Communications, Abu Dhabi, United Arab Emirate (UAE), December 9-13, 2018.

[C71]  Y. Wang, N. Wu, and Z. Xu, “Study of raptor codes for indoor mobile VLC channels,” 8th IEEE GLOBECOM Workshop on Optical Wireless Communications, Abu Dhabi, United Arab Emirate (UAE), December 9-13, 2018.

[C72]  J. Xu, C. Gong, and Z. Xu, “Indoor visible light positioning with centimeter accuracy based on a commercial smartphone camera,” 8th IEEE GLOBECOM Workshop on Optical Wireless Communications, Abu Dhabi, United Arab Emirate (UAE), December 9-13, 2018.

[C73]  B. Zhang, C. Gong, S. Li, and Z. Xu, “Constellation design for LED-based full-duplex VLC,” IEEE Global Conference on Signal and Information Processing (GlobalSIP), Anaheim, California, USA, November 26-29, 2018.

[C74]  F. Liu, W. Jiang, X. Jin, and Z. Xu, “A simple and effective tracking scheme for visible light communication systems,” The 17th International Conference on Optical Communications and Networks (ICOCN), Zhuhai, China, November 16-19, 2018. (Best paper award)

[C75]  W. Xue, S. Li, and Z. Xu, “Sunlight enabled vehicle detection by LED street lights,” Asia Communications and Photonics Conference (ACP), Hangzhou, China, Oct. 26-29, 2018.

[C76]  C. Lu, C. Li, and Z. Xu, “Experimental investigation of underwater weak optical communication using photomultiplier tube receiver,” Asia Communications and Photonics Conference (ACP), Hangzhou, China, Oct. 26-29, 2018.

[C77]  D. Chen, C. Li, and Z. Xu, “Experimental characterization of variable background light to APD-based OWC system performance,” CLEO Pacific Rim Conference, Hong Kong, July 29-August 3, 2018.

[C78]  X. Nie and Z. Xu, “A cloud-assisted 57.6 Kbps image sensor communication system using a smartphone camera,” 11th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Budapest, Hungary, July 18-20, 2018.

[C79]  R. Xu, H. Chen, and Z. Xu, “The near-field radiation pattern of an OLED panel and its application in detection,” 11th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2018), Budapest, Hungary, July 18-20, 2018.

[C80]  Q. Pan, S. Li, C. Gong, S. Liang, and Z. Xu, “A white light communication model based on fluorescence decay process,” 11th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2018), Budapest, Hungary, July 18-20, 2018.

[C81]  S. Hu, Q. Gao, C. Gong, Z. Xu, R. Boluda-Ruiz, and K. A. Qaraqe, “Energy-efficient modulation for visible light SCMA system with signal-dependent noise,” 11th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2018), Budapest, Hungary, July 18-20, 2018.

[C82]  W. Liu and Z. Xu, “Predicted and experimental performance of a long distance non-line of sight image sensor communication system,” IEEE ICC Workshop on Optical Wireless Communications, Kansas City, MO, USA, May 20, 2018.

[C83]  T. Xiao, C. Gong, Q. Gao, and Z. Xu, “Channel characterization for multi-color VLC for feedback and beamforming design,” IEEE ICC Workshop on Optical Wireless Communications, Kansas City, MO, USA, May 20, 2018.

[C84]  G. Wang, C. Gong, Z. Jiang, and Z. Xu, “Characterization on asynchronous multiple access in non-line of sight scattering communication,” IEEE ICC Workshop on Optical Wireless Communications, Kansas City, MO, USA, May 20, 2018.

[C85]  Q. Hu, X. Jin, and Z. Xu, “Digital compensation of sampling frequency offset for OFDM-based visible light communication systems,” IEEE ICC Workshop on Optical Wireless Communications, Kansas City, MO, USA, May 20, 2018.

[C86]  S. Li, B. Huang, and Z. Xu, “LED receiver impedance and its effects on LED-LED visible light communications,” IEEE ICC Workshop on Optical Wireless Communications, Kansas City, MO, USA, May 20, 2018.

[C87]  S. Lou, C. Gong, Q. Gao, and Z. Xu, “SCMA with low complexity symmetric codebook design for visible light communication,” IEEE International Conference on Communications, Kansas City, MO, USA, May 20-24, 2018.

[C88]  B. Liu, C. Gong, and Z. Xu, “Correlation analysis and path loss prediction for optical wireless scattering communication over broad spectra,” IEEE International Conference on Communications, Kansas City, MO, USA, May 20-24, 2018.

[C89]  S. Li, B. Huang, and Z. Xu, “Experimental MIMO VLC systems using tricolor LED transmitters and receivers,” IEEE GLOBECOM Workshop on Optical Wireless Communications, Singapore, December 4-8, 2017.

[C90]  X. Liu, C. Gong, S. Li, and Z. Xu, “HMM-based signal characterization and detection for VLC under weak illuminance,” IEEE GLOBECOM Workshop on Optical Wireless Communications, Singapore, December 4-8, 2017.

[C91]  C. Gong, Z. Xu, and J. Zhu, “Parallel channel over wide optical spectrum: Mining and matching-based optimization,” IEEE GLOBECOM Workshop on Vehicular Communications based on 5G, Singapore, December 4-8, 2017.

[C92]  G. Wang, C. Gong, and Z. Xu, “Signal detection and achievable rates for multiple access optical wireless scattering communication,” IEEE Global Communications Conference, Singapore, December 4-8, 2017.

[C93]  D. Zou, C. Gong, K. Wang, and Z. Xu, “Characterization of a practical photon counting receiver in optical scattering communication,” IEEE Global Communications Conference, Singapore, December 4-8, 2017. (Best paper award)

[C94]  H. Chen and Z. Xu, “Radiation pattern modeling of a bent OLED panel for visible light communication,” Asia Communications and Photonics Conference (ACP), p. Su3G.3, Guangzhou, China, November 10-13, 2017.

[C95]  Q. Pan, S. Li, S. Liang, and Z. Xu, “Blue LD-based white light source for joint lighting and visible light communication,” Asia Communications and Photonics Conference (ACP), p. Su3G.6, Guangzhou, China, November 10-13, 2017.

[C96]  Y. Mao, X. Jin, W. Liu, C. Gong, and Z. Xu, “Demonstration of real-time CAP transceivers with hybrid digital equalization for visible light communication,” Asia Communications and Photonics Conference (ACP), Guangzhou, p. M1G.4, Guangzhou, China, November 10-13, 2017.

[C97]  C. Li, Z. Xu, C. Yang, Q. Yang, and S. Yu, “Experimental demonstration of clipping noise mitigation for OFDM-based underwater optical wireless communications,” Asia Communications and Photonics Conference (ACP), p. M1G.2, Guangzhou, China, November 10-13, 2017.

[C98]  C. Li, Z. Xu, Q. Yang, and S. Yu, “Experimental demonstration of joint compensation of laser phase noise and transmitter IQ mismatch for coherent optical OFDM system,” Asia Communications and Photonics Conference (ACP), p. Su4C.3, Guangzhou, China, November 10-13, 2017.

[C99]  M. Gao, C. Li, and Z. Xu, “Optimal transmission scheme for a nonlinear VLC system based on maximizing SNDR,” Asia Communications and Photonics Conference (ACP) p. Su2A.45, Guangzhou, China, November 10-13, 2017.

[C100]J. Wang, C. Li, and Z. Xu, “Performance enhancement of a nonlinear VLC system using carrier interferometry OFDM (CI-OFDM),” Asia Communications and Photonics Conference (ACP), p. M1G.3, Guangzhou, China, November 10-13, 2017.

[C101]M. Zeng, K. Zhou, C. Gong, S. Lou, X. Jin, and Z. Xu, “Design and demonstration of an indoor visible light communication network with dynamic user access and resource allocation,” The 9th International Conference on Wireless Communications and Signal Processing (WCSP), October 11-13, 2017, Nanjing, China.

[C102]W. Huang and Z. Xu, “Performance of image sensor communication,” IEEE Photonics Conference (IPC 2017), Lake Buena Vista, Florida, USA, October 1-5, 2017.

[C103]R. Yang, X. Jin, M. Jin, and Z. Xu, “Experimental investigation of optical OFDMA for vehicular visible light communication” The 43th European Conference on Optical Communication (ECOC 2017), Gothenburg, Sweden, September 17-21, 2017.

[C104]D. Chen, C. Li, and Z. Xu, “Performance evaluation of OOK and PAM modulations in underwater wireless optical communication system based on APD receiver,” 16th International Conference on Optical Communications and Networks (ICOCN), Wuzhen, China, Aug. 7-10, 2017.

[C105]C. Liu, X. Jin, W. Zhu, M. Jin, and Z. Xu, “Demonstration of a low complexity ARM-based indoor VLC transceiver under strong interference,” The 13th International Wireless Communications & Mobile Computing Conference (IWCMC), Valencia, Spain, June 26-30, 2017.

[C106]H. Luan, X. Jin, W. Liu, M. Jin, and Z. Xu, “Demonstration of a real-time vehicular visible light communication system with timing recovery,” The 13th International Wireless Communications & Mobile Computing Conference (IWCMC), Valencia, Spain, June 26-30, 2017.

[C107]J. Wang, W. Huang, and Z. Xu, “Demonstration of a covert camera-screen communication system,” The 13th International Wireless Communications & Mobile Computing Conference (IWCMC), Valencia, Spain, June 26-30, 2017.

[C108]X. Li, H. Chen, S. Li, Q. Gao, C. Gong, and Z. Xu, “Volterra-based nonlinear equalization for nonlinearity mitigation in organic VLC,” The 13th International Wireless Communications & Mobile Computing Conference (IWCMC), Valencia, Spain, June 26-30, 2017.

[C109]B. Zhuang, C. Li, N. Wu, and Z. Xu, “First demonstration of 400Mb/s PAM4 signal transmission over 10-meter underwater channel using a blue LED and a digital linear pre-equalizer,” Conference on Lasers and Electro-Optics (CLEO), San Jose Convention Center, San Jose, CA, USA, May 14-19, 2017.

[C110]Q. Gao, S. Hu, C. Gong, and Z. Xu, “Modulation design for multi-carrier visible light communications with signal-dependent noise,”The 15th IEEE International Conference on Communication Systems (ICCS), Shenzhen, China, December 14-16, 2016.

[C111]Y. Mao, H. Luan, W. Liu, R. Yang, M. Jin, X. Jin, and Z. Xu, “Experimental investigation of carrierless amplitude-phase transmission for vehicular visible light communication systems,” The 15th IEEE International Conference on Communication Systems (ICCS), Shenzhen, China, December 14-16, 2016.

[C112]H. Chen, S. Li, W. Li, B. Huang, J. Xie, G. Dong, and Z. Xu, “A 1.9Mbps OFDM-based all-organic visible light communication system,” The 15th IEEE International Conference on Communication Systems (ICCS), Shenzhen, China, December 14-16, 2016.

[C113]K. Wang, C. Gong, D. Zou, and Z. Xu, “Turbulence channel modeling and non-parametric estimation for optical wireless scattering communication,”The 15th IEEE International Conference on Communication Systems (ICCS), Shenzhen, China, December 14-16, 2016. (Best paper award)

[C114]K. Zhou, C. Gong, Q. Gao, and Z. Xu, “Inter-cell interference coordination for multi-color visible light communication networks,”IEEE Global Conference on Signal and Information Processing, Washington DC, USA, December 7-9, 2016.

[C115]D. Zou, C. Gong, and Z. Xu, “Optical wireless scattering communication system with a non-ideal photon-counting receiver,”IEEE Global Conference on Signal and Information Processing, Washington DC, USA, December 7-9, 2016.

[C116]G. Zheng, Q. Gao, C. Gong, and Z. Xu, “Achievable rate and optimal signaling for an optical wireless decode-and-forward relaying channel,”IEEE Global Conference on Signal and Information Processing, Washington DC, USA, December 7-9, 2016.

[C117]Q. Gao, C. Gong, and Z. Xu, “Joint transceiver and offset design for visible light communications with input-dependent noise,”IEEE Global Communications Conference, Washington DC, USA, December 4-8, 2016.

[C118]X. Jin, W. Liu, H. Luan, Y. Mao, R. Yang, and Z. Xu, “Experimental investigation of inter-user interference in vehicular visible light communication systems,”Asia Communications and Photonics Conference (ACP), Wuhan, China, November 2-5, 2016.

[C119]C. Li, Z. Xu, Q. Yang, and S. Yu, “Transmitter IQ mismatch compensation based on second order moment estimation for coherent optical M-QAM system,” Asia Communications and Photonics Conference (ACP), Wuhan, China, November 2-5, 2016.

[C120]P. Wang, C. Li, B. Wang, and Z. Xu, “Real-time 25Mb/s data transmission for underwater optical wireless communication using a commercial blue LED and APD detection,”Asia Communications and Photonics Conference (ACP), Wuhan, China, November 2-5, 2016.

[C121]C. Li, B. Wang, P. Wang, Z. Xu, Q. Yang, and S. Yu, “Generation and transmission of 745Mb/s OFDM signal using a single commercial blue LED and an analog post-equalizer for underwater optical wireless communications,”Asia Communications and Photonics Conference (ACP), Wuhan, China, November 2-5, 2016.

[C122]B. Huang, S. Li, J. Ding, and Z. Xu, “Integrating sphere and cuboid channel models for indoor non-line-of-sight visible light communications,”2nd IEEE International Conference on Computer and Communications, Chengdu, China, Oct. 14-17, 2016.

[C123]J. Hu, C. Gong, and Z. Xu, “Demonstration of a robot controlling and positioning system based on visible light,”International Conference on Wireless Communications and Signal Processing, Yangzhou, Jiangsu, China, October 13-15, 2016.

[C124]D. Li, W. Huang, and Z. Xu, “Flicker free indoor visible light positioning system assisted by a filter and mobile phone camera,” IEEE International Conference in Communications in China, Chengdu, China, July 27-29, 2016.

[C125]B. Zhuang, C. Li, and Z. Xu, “Enhanced performance of spatial modulation with angular diversity receiver for indoor visible light communication,” IEEE International Conference in Communications in China, Chengdu, China, July 27-29, 2016.

[C126]D. Zou, Z. Xu, and C. Gong, “Performance of non-line-of-sight ultraviolet scattering communication under different altitudes,” IEEE International Conference in Communications in China, Chengdu, China, July 27-29, 2016.

[C127]P. Tian, W. Huang, and Z. Xu, “Design and experimental demonstration of a real-time 95kbps optical camera communication system,” 10th IEEE/IET International Symposium on Communication Systems, Networks & Digital Signal Processing, Prague, Czech Republic, July 20-22, 2016.

[C128]D. Li, C. Gong, and Z. Xu, “A RSSI-based indoor visible light positioning  approach,” 10th IEEE/IET International Symposium on Communication Systems, Networks & Digital Signal Processing, Prague, Czech Republic, July 20-22, 2016.

[C129]X. Liu, C. Gong, and Z. Xu, “Sequential detection for optical wireless scattering communication,”IEEE International Conference on Communications, Workshop on Optical Wireless Communications, Kuala Lumpur, Malaysia, May 23, 2016.

[C130]B. Liu, C. Gong, and Z. Xu, “Power optimization of multiple-wavelength optical wireless scattering communication,”IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 23-27, 2016.

[C131]C. Gong, X. Zhang, Z. Xu, and L. Hanzo, “Optical wireless scattering channel estimation for photon-counting receiver,”IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 23-27, 2016.

[C132]C. Gong, Q. Gao, and Z. Xu, “Analysis and design of amplitude modulation for optical wireless communication with shot noise,”IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 23-27, 2016.

[C133]C. Shen, S. Lou, C. Gong, and Z. Xu, “User association with lighting constraints in visible light communication systems,”50th Annual Conference on Information Sciences and Systems (CISS), Princeton, NJ, USA, March 16-18, 2016.

[C134]X. Zhang, Q. Gao, and Z. Xu, “Optical interference alignment for an indoor visible light communication X-channel,”IEEE Global Conference on Signal and Information Processing, Orlando, FL, December 14-16, 2015.

[C135]W. Huang, C. Gong, P. Tian, and Z. Xu, “Experimental demonstration of high-order modulation for optical camera communication,”IEEE Global Conference on Signal and Information Processing, Orlando, FL, USA, December 14-16, 2015.

[C136]Z. Xu, “Opportunities and challenges in ultraviolet communications,” IEEE Summer Topicals Meeting Series, Nassau, Bahamas, July 13-15, 2015.

[C137]C. Gong, S. Li, Q. Gao, and Z. Xu, “Visible light communication optimization under lighting constraints,” IEEE Summer Topicals Meeting Series, Nassau, Bahamas, July 13-15, 2015.

[C138]S. Li, C. Gong, and Z. Xu, “Visible light communication performance in weak illumination environment,” OptoElectronics and Communications Conference (OECC), Shanghai, China, June 29-July 2, 2015.

[C139]Q. Gao, R. Wang, Z. Xu,and Y. Hua, “Power-efficient high-dimensional constellation design for visible light communication,” OptoElectronics and Communications Conference (OECC), Shanghai, China, June 29-July 2, 2015.

[C140]W. Liu, D. Zou, Z. Xu, and J. Yu, “Non-line-of-sight scattering channel modeling for underwater optical wireless communication,” 2015 IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER), Shenyang, China, June 8-12, 2015.

[C141]C. Gong, Z. Xu, and B. Chen, “On slot sensing for optical wireless scattering communications,” IEEE ICC, London, UK, June 8-12, 2015.

[C142]C. Gong, S. Li, Q. Gao, and Z. Xu, “Power and rate optimization for visible light communication system with lighting constraints,” IEEE ICC, London, UK, June 8-12, 2015.

[C143]W. Huang, C. Gong, and Z. Xu, “System design for wavelet packet division multiplexing-based visible light communications,” IEEE ICC, London, UK, June 8-12, 2015.

[C144]C. Gong and Z. Xu, “Linear receivers for optical wireless scattering communication with multiple photon detectors,” IEEE Globecom Workshop on Optical Wireless Communications, Austin, TX, December 8-12, 2014.

[C145]C. Gong and Z. Xu, “Particle stream channel modeling and estimation for non-line of sight optical wireless communication,” IEEE Globecom Conf., Austin, TX, December 8-12, 2014.

[C146]D. Zou, S.-B. Li, and Z. Xu,“Improving the NLOS optical scattering channel via beam reshaping,”Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 2-5th, 2014.

[C147]B. Huang, C. Gong, and Z. Xu, “Correlation study for single-input multiple-output optical wireless scattering channels,”Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 2-5th, 2014.

[C148]X. Zhang, C. Gong, and Z. Xu, “Estimation of NLOS optical wireless communication channels with laser transmitters,”Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 2-5th, 2014.

[C149]W. Liu and Z. Xu, “Characteristics of optical scattering and turbulence communication channels,”Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November 2-5th, 2014.

[C150]W. Huang, C. Gong, and Z. Xu, “Visible light communication based on wavelet packet division multiplexing,”International Conference on Wireless Communications and Signal Processing, Hefei, China, October 23-25, 2014.

[C151]Q. Gao, R. Wang, Z. Xu, and Y. Hua, “Joint beamformer and offset design for multi-color visible light communications,”International Conference on Wireless Communications and Signal Processing, Hefei, China, October 23-25, 2014.

[C152]J. Ding and Z. Xu, “Performance of indoor VLC and illumination under multiple reflections,”International Conference on Wireless Communications and Signal Processing, Hefei, China, October 23-25, 2014.

[C153]J. Ding, K. Wang, and Z. Xu, “Impact of different LED-spacing in arrayed LED transmitter on VLC channel modeling,”International Conference on Wireless Communications and Signal Processing, Hefei, China, October 23-25, 2014.

[C154]W. Liu, D. Zou, P. Wang, Z. Xu, and L. Yang, “Wavelength dependent channel characterization for underwater optical wireless communications,” IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC2014), Guilin, China, August 5-8, 2014.

[C155]J. Ding, K. Wang, and Z. Xu, “Impact of LED array simplification on indoor visible light communication channel modeling,” Proc. of IEEE, IET International Symposium on Communication Systems, Networks & Digital Signal Processing,Manchester, UK, July 23-25, 2014.

[C156]J. Ding, K. Wang, and Z. Xu, “Accuracy analysis of different modeling schemes in indoor visible light communications with distributed array sources,” Proc. of IEEE, IET International Symposium on Communication Systems, Networks & Digital Signal Processing,Manchester, UK, July 23-25, 2014.

[C157]X. Cheng, M. Wen, X. Cheng, L. Yang, and Z. Xu, “Effective self-cancellation of intercarrier interference for OFDM underwater acoustic communications,” Proc. of The 8th ACM International Conference on Underwater Networks & Systems, Taiwan, November 11-13, 2013.

[C158]X. Tang, Z. Xu, and Z. Ghassemlooy, “Outage probability of multihop free space optical communications over Nakagami fading channels,” 18th European Conference on Network and Optical Communications, Graz, Austria, July 10-12, 2013.

[C159]X. Tang, Z. Xu, Z. Ghassemlooy, W. O. Popoola, and C. G. Lee, “Coherent binary polarization shift keying in free space optical turbulence channel,” International Conference on Optics & Photonics (OPTIC 2012), Taipei, Taiwan, Dec. 6-8, 2012.

[C160]Q. He and Z. Xu, “Opportunistic cooperation for FSO links aided by decode and forward relay,” 3rd IEEE Workshop on Optical Wireless Communications, Anaheim, CA, December 3, 2012.

[C161]Y. Li, L. Wang, J. Ning, K. Pelechrinis, S. V. Krishnamurthy, and Z. Xu,“VICO: A framework for configuring indoor visible light communication networks,”9th IEEE International Conference on Mobile Ad hoc and Sensor Systems (MASS),  Las Vegas, Nevada, USA, October 8-11, 2012.

[C162]P. Lou, H. Zhang, X. Zhang, M. Yao, and Z. Xu, “Fundamental analysis for indoor visible light positioning system,” 1^st IEEE Workshop on Optical Wireless Communications in China, Beijing, China, pp. 59-63, August 15, 2012.

[C163]B. Bai, Q. He, Z. Xu, and Y. Fan, “The color shift key modulation with non-uniform signaling for visible light communication,” 1^st IEEE Workshop on Optical Wireless Communications in China, Beijing, China, August 15, 2012.

[C164]X. Zhang, K. Cui, H. Zhang, and Z. Xu,“Capacity of MIMO visible light communication channels,” IEEE Photonics Society 2012 Summer Topical Meetings, Seattle, Washington, July 9-11, 2012.

[C165]X. Zhang, K. Cui, M. Yao, H. Zhang, and Z. Xu,“Experimental characterization of indoor visible light communication channels,” 8th IEEE, IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2012), Poznan, Poland, July 18-20, 2012.

[C166]C. Ma, H. Zhang, M. Yao, Z. Xu, and K. Cui, “Distributions of PAPR and Crest factor of OFDM signals for VLC,”IEEE Photonics Society 2012 Summer Topical Meetings, Seattle, Washington, July 9-11, 2012.

[C167]C. Ma, H. Zhang, K. Cui, M. Yao,and Z. Xu, “Effects of LED lighting degradation and junction temperature variation on the performance of visible light communication,” International Conference on Systems and Informatics (ICSAI 2012), Yantai, China, May 19-20, 2012.

[C168]K. Cui, G. Chen, Z. Xu, and R. Roberts, “Experimental characterization of traffic light to vehicle VLC link performance,”Proc. of 2nd IEEE Workshop on Optical Wireless Communications, Houston, Texas, December 5-9, 2011.

[C169]L. Wang, Y. Li, Z. Xu, S. V. Krishnamurthy, “A novel neighbor discovery protocol for ultraviolet wireless networks,” Proc. of ACM MSWiM, pp.135-142, Miami Beach, FL, USA, October 31- November 4, 2011.

[C170]H. Ding, G. Chen, A. K. Majumdar, B. M. Sadler, and Z. Xu, “Turbulence modeling for non-line-of-sight ultraviolet scattering channels,” SPIE Defense, Security, and Sensing, Orlando, Florida, USA, 25-29 April 2011.

[C171]B. Bai, G. Chen, Z. Xu, and Y. Fan, “Visible light positioning based on LED traffic light and photodiodes,” IEEE VTC Fall, pp. 1-5, San Francisco, 5-8 September 2011.

[C172]W. Lee, D. Yoon, Z. Xu, S. Jee, and J. Lee, “Outage performance analysis of Alamouti STBC in backward link for wireless cooperative networks,” The Tenth International Conference on Networks (ICN), St. Maarten, The Netherlands Antilles, January 23-28, 2011.

[C173]L. Wang, Y. Li, Z. Xu, and B. M. Sadler, “Wireless ultraviolet network models and performance in noncoplanar geometry,” IEEE Globecom 2010 Workshop on Optical Wireless Communications (OWC 2010), Miami, FL, December 10, 2010.

[C174]Q. He, Z. Xu, and B. M. Sadler, “Non-line-of-sight serial relayed link for optical wireless communications,” 2010 IEEE Military Communications Conference, San Jose, CA, October 31-November 3, 2010.

[C175]Y. Li, J. Ning, Z. Xu, S. V. Krishnamurthy, and G. Chen, “UVOC-MAC: A MAC protocol for outdoor ultraviolet networks,” 18th IEEE International Conference on Network Protocols (ICNP 2010), Kyoto, Japan, October 5-8, 2010.

[C176]G. Chen, Z. Xu, and B. M. Sadler, “Experimental demonstration of non-line-of-sight ultraviolet communication channel characteristics,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications X, San Diego, CA, August 1-3, 2010.

[C177]Z. Dong, K. Cui, G. Chen, and Z. Xu, “Non-line-of-sight link performance study for indoor visible light communication systems,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications X, San Diego, CA, August 1-3, 2010.

[C178]L. Wang, Q. He, Z. Xu, and B. M. Sadler, “Performance of non-line-of-sight ultraviolet communication receiver in ISI channel,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications X, San Diego, CA, August 1-3, 2010.

[C179]K. Cui, G. Chen, Z. Xu, and R. D. Roberts, “Line-of-sight visible light communication system design and demonstration,” Proc. of 7th IEEE, IET International Symposium on Communication Systems, Networks & Digital Signal Processing: 2nd Colloquium on Optical Wireless Communications, Newcastle, UK, July 21-23, 2010.

[C180]H. Ding, G. Chen,Z. Xu, and B. M. Sadler, “Characterization and modeling of non-line-of-sight ultraviolet scattering communication channels,” Proc. of 7th IEEE, IET International Symposium on Communication Systems, Networks & Digital Signal Processing: 2nd Colloquium on Optical Wireless Communications, Newcastle, UK, July 21-23, 2010.

[C181]S. G. Kim, D. Yoon, Z. Xu, and S. K. Park, “Performance analysis of the MIMO zero-forcing receiver over continuous flat fading channels,” Proc. of the 3rd International Conference on Information Sciences and Interaction Sciences, Chengdu, China, June 23-25, 2010.

[C182]B. Bai, Z. Xu, and Y. Fan, “Joint LED dimming and high capacity visible light communication by overlapping PPM,” Proc. of 2010 19^th Annual Wireless and Optical Communications Conference (WOCC 2010), Shanghai, China, pp. 71-75, May 14-15, 2010.

[C183]B. M. Sadler, N. Liu,and Z. Xu, “Ziv-Zakai bounds for time delay estimation with frequency hopping and multicarrier signals in wideband random channels,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., Dallas, Texas, March 14-19, 2010.

[C184]Q. He, B. M. Sadler, and Z. Xu, “On the achievable performance of non-line-of-sight ultraviolet communications,” Proc. of OSA Topical Meeting on Applications of Lasers for Sensing and Free Space Communications (LS&C), San Diego, CA, January 31-February 3, 2010.

[C185]K. Cui, G. Chen, Q. He, and Z. Xu, “Indoor optical wireless communication by ultraviolet and visible light,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications IX, San Diego, CA, August 2-3, 2009.

[C186]Q. He, B. M. Sadler, and Z. Xu, “Modulation and coding tradeoffs for non-line-of-sight ultraviolet communications,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications IX, San Diego, CA, August 2-3, 2009.

[C187]H. Ding, G. Chen,A. K. Majumdar, B. M. Sadler, and Z. Xu, “Non-line-of-sight ultraviolet communication channel characterization: modeling and validation,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications IX, San Diego, CA, August 2-3, 2009.

[C188]Z. Xu and B. M. Sadler, “Performance evaluation of solar blind NLOS ultraviolet communication systems,” Proc. of 26^th Army Science Conference, Orlando, Florida, December 1-4, 2008.

[C189]B. M. Sadler, N. Liu, Z. Xu, and R. Kozick, “Range-based geolocation in fading environments,” Proc. of Allerton Conference, Monticello, Illinois, September 23-26, 2008.

[C190]H. Ding, G. Chen,A. K. Majumdar, and Z. Xu, “A parametric single scattering channel model for non-line-of-sight ultraviolet communications,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications VIII,vol. 7091, pp. 70910M1-70910M6, San Diego, CA, August 10-14, 2008.

[C191]B. M. Sadler, N. Liu, and Z. Xu, “Ziv-Zakai bound on time delay estimation in unknown convolutive random channels,” Proc. of  IEEE Sensor Array and Multichannel Signal Processing Workshop, Darmstadt, Germany, July 21-23, 2008.

[C192]G. Fraidenraich, Z. Xu, S. Rane, and J. Cioffi, “On capacity of frequency selective multipath channels with path correlations,” Proc. of the 9th IEEE International Workshop on Signal Processing Advances in Wireless Communications, Recife, Brazil, July 6-9, 2008.

[C193]Z. Xu, N. Liu, and B. M. Sadler, “A simple closed-form linear source localization algorithm,” Proc. ofMilcom, Orlando, Florida, October 29-31, 2007.

[C194]Z. Xu and B. M. Sadler, “Time delay estimation bounds in wideband random channels,” Proc. ofMilcom, Orlando, Florida, October 29-31, 2007.

[C195]Z. Xu, G. Chen, F. Abou-Galala, and M. Leonardi, “Experimental performance evaluation of non-line-of-sight ultraviolet communication systems,” Proc. of SPIE Photonics and Optics – Free Space Laser Communications VII, vol. 6709, pp. 67090Y1-67090Y12, San Diego, CA, August 28-30, 2007.

[C196]P. Liu and Z. Xu, “Constrained cross-cumulant based multiuser detection for uplink CDMA,” Proc. of IEEE Workshop on Statistical Signal Processing (SSP), Madison, Wisconsin, August 26-29, 2007.

[C197]F. Sun, V. O. K. Li, Z. Diao, and Z. Xu, “Contention-based medium access control with physical layer assisted link differentiation,” Proc. of IEEE ICC, Glasgow, Scotland, June 24-28, 2007.

[C198]Z. Xu, “Approximate performance analysis of wireless ultraviolet links,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,Honolulu, Hawaii, April 15-20, 2007.

[C199]B. M. Sadler, L. Huang, and Z. Xu, “Ziv-Zakai time delay estimation bound for ultra-wideband signal,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,Honolulu, Hawaii, April 15-20, 2007.

[C200]F. Sun, V. O. K. Li, Z. Diao, and Z. Xu, “A new cross-layer designed multipolling MAC protocol over wireless LANs,” Proc. of IEEE WCNC, Hong Kong, China, March 11-15, 2007.

[C201]Y. Li and Z. Xu, “Transmitted reference schemes for wireless optical communications,” Proc. of IEEE Globecom, San Francisco, CA, November 27-30, 2006.

[C202]F. Sun, V. O. K. Li, Z. Diao, and Z. Xu, “Medium access control with physical layer assisted loss differentiation,” Proc. of IEEE Globecom, San Francisco, CA, November 27-30, 2006.

[C203]Z. Xu, A. Swami and B. M. Sadler, “Performance study of a high-rate multiuser transmitted reference ultra-wideband transceiver,” Proc. of Milcom, Washington DC, October 23-25, 2006.

[C204]J. Tang and Z. Xu, “Performance study of a near-optimum modulation diversity assisted ultra-wideband receiver,” Proc. of IEEE Intl. Conf. on Ultra-Wideband, Waltham, Massachusetts, September 24-27, 2006.

[C205]P. Liu, Z. Xu and B. M. Sadler, “Narrowband interference suppression of an MTR-UWB transceiver,” Proc. of IEEE Radio and Wireless Symposium, San Diego, CA, January 17-19, 2006.

[C206]B. M. Sadler, Z. Xu and J. Tang, “Data detection performance of an MTR-UWB receiver in the presence of timing errors,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, October 30-November 2, 2005.

[C207]L. Liu and Z. Xu, “Joint packet scheduling and channel allocation for wireless communications,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, CA, October 30-November 2, 2005.

[C208]Z. Xu, A. Swami and B. M. Sadler, “A multiuser transmitted reference UWB transceiver for high data rate communication,” Proc. of Milcom, Atlantic City, NJ, October 17-20, 2005.

[C209]Z. Xu and B. M. Sadler, “Code aided near full rate multiuser TR-UWB systems,” Proc. of IEEE SPAWC, New York, June 5-8, 2005.

[C210]J. Tang, Z. Xu and B. M. Sadler, “Digital receiver for TR-UWB systems with inter-pulse interference,” Proc. of IEEE SPAWC, New York, June 5-8, 2005.

[C211]Z. Xu, B. M. Sadler and J. Tang, “Data detection for UWB transmitted reference systems with inter-pulse interference,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,Philadelphia, PA, March 19-23, 2005.

[C212]J. Tang and Z. Xu, “A novel modulation diversity assisted ultra wideband communication system,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,Philadelphia, PA, March 19-23, 2005.

[C213]P. Liu and Z. Xu, “Performance of POR multiuser detection for UWB communications,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc.,Philadelphia, PA, March 19-23, 2005.

[C214]J. Tang and Z. Xu, “Statistical performance of correlation-matching based channel estimators for aperiodic time hopping UWB systems,” Proc. of IEEE Global Telecommunications Conference (Globecom), Dallas, Texas, November 29-December 3, 2004.

[C215]Z. Xu, “Regularization enhanced fast convergence for POR-based multiuser detection,” Proc. of IEEE VTC Conf., Los Angeles, CA, September 26-29, 2004.

[C216]Z. Xu and L. Liu, “Power allocation for multi-band OFDM UWB communication networks,” Proc. of IEEE VTC Conf., Los Angeles, CA, September 26-29, 2004.

[C217]P. Liu and Z. Xu, “POR channel estimation for UWB communications,” Proc. of IEEE 6th CAS Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication, pp. 25-28, Shanghai, China, May 31-June 2, 2004.

[C218]J. Tang and Z. Xu, “Blind channel estimation in aperiodic time hopping ultra-wideband systems,” Proc. of IEEE 6th CAS Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication, pp. 337-340, Shanghai, China, May 31-June 2, 2004.

[C219]Z. Xu, “Performance of CDMA receivers under imperfect channel estimation”, Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 969-972, Quebec, Canada, May 17-21, 2004.

[C220]P. Liu and Z. Xu, “Temporal diversity assisted blind channel estimation for downlink long-code CDMA systems”, Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 953-956, Quebec, Canada, May 17-21, 2004.

[C221]J. Tang and Z. Xu, “Multidimensional orthogonal design for ultra-wideband downlink”, Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 541-544, Quebec, Canada, May 17-21, 2004.

[C222]P. Liu, Z. Xu and J. Tang, “Minimum variance multiuser detection for impulse radio UWB systems,” Proc. of IEEE Conf. on Ultra Wideband Systems and Technologies, pp. 111-115, Reston, Virginia, November 16-19, 2003.

[C223]P. Liu, Z. Xu and J. Tang, “Subspace multiuser receivers for UWB communication systems,” Proc. of IEEE Conf. on Ultra Wideband Systems and Technologies, pp. 116-120, Reston, Virginia, November 16-19, 2003.

[C224]J. Tang, Z. Xu and P. Liu, “Mean and covariance based estimation of multiple access UWB channels,” Proc. of IEEE Conf. on Ultra Wideband Systems and Technologies, pp. 458-462, Reston, Virginia, November 16-19, 2003.

[C225]Z. Xu and P. Liu, “A subspace approach to blind estimation of ultra-wideband channels,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, pp. 1249-1253,  Pacific Grove, CA, November 10-12, 2003.

[C226]Z. Xu, “Blind channel estimation via subspace approximation,” Proc. of 37th Asilomar Conf. on Signals, Systems, and Computers, pp. 1653-1657, Pacific Grove, CA, November 10-12, 2003.

[C227]Z. Xu, P. Liu and J. Tang, “Blind multiuser detection for impulse radio UWB systems,” Proc. of IEEE Topical Conference on Wireless Communication Technology, pp. s27p08, Honolulu, Hawaii, October 15-17, 2003.

[C228]Z. Xu, J. Tang and P. Liu, “Blind channel estimation for multiple access UWB communications based on periodic time hopping and pulse-rate modeling,” Proc. of IEEE Topical Conference on Wireless Communication Technology, pp. s27p09, Honolulu, Hawaii, October 15-17, 2003.

[C229]P. Liu and Z. Xu “Blind adaptive multiuser detection for uplink long-code CDMA systems,'' Proc. of IEEE Workshop on Statistical Signal Processing, pp. 329-332, St. Louis, Missouri, Sept. 28-Oct. 1, 2003.

[C230]Z. Xu, J. Tang and P. Liu “Frequency-domain estimation of multiple access ultra-wideband signals,” Proc. of IEEE Workshop on Statistical Signal Processing, pp. 65-68, St. Louis, Missouri, Sept. 28-Oct. 1, 2003.

[C231]N. Yu and Z. Xu, “On the second-order statistics of the sample covariance,” Proc. of 14th IEEE International Symposium on Personal Indoor and Mobile Radio Communication, vol. 2, pp. 2953-2957, Beijing, China, September 7-10, 2003.

[C232]P. Liu, Z. Xu and N. Yu, “On performance study of data based multiuser detection methods foruplink long-code cdma systems,” Proc. of 14th IEEE International Symposium on Personal Indoor and Mobile Radio Communication, vol. 2, pp. 2910-2914, Beijing, China, September 7-10, 2003.

[C233]Z. Xu, P. Liu and N. Yu, “Performance of channel estimation assisted linear multiuser receivers fordownlink CDMA systems with long spreading codes,” Proc. of 14th IEEE International Symposium on Personal Indoor and Mobile Radio Communication, vol. 2, pp. 2978-2982, Beijing, China, September 7-10, 2003.

[C234]P. Liu and Z. Xu “Linear multiuser detection for uplink long-code CDMA systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 97-100, Hong Kong, April 6-10, 2003.

[C235]Y. Deng and Z. Xu “Performance of a low-complexity downlink channel estimator for long-code CDMA systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 117-120, Hong Kong, April 6-10, 2003.

[C236]P. Liu and Z. Xu “A globally convergent CMA-based approach to blind multiuser detection,” Proc. of 36th Asilomar Conf. on Signals, Systems, and Computers, pp. 634-638, Pacific Grove, CA, November 3-6, 2002.

[C237]P. Liu and Z. Xu, “Channel estimation and multiuser detection for long code CDMA,” Proc. of 36th Asilomar Conf. on Signals, Systems, and Computers, pp. 1453-1457, Pacific Grove, CA, November 3-6, 2002.

[C238]Z. Xu, P. Liu and X. Wang, “Towards closing the gap between MOE and subspace methods,” Proc. of 36th Asilomar Conf. on Signals, Systems, and Computers, pp. 689-693, Pacific Grove, CA, November 3-6, 2002.

[C239]Z. Xu and P. Liu, “Kurtosis based maximization/minimization approach to blind equalization for DS/CDMA systems in unknown multipath,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. III, pp. 2585-2588, Orlando, Florida, May 13-17, 2002.

[C240]P. Liu and Z. Xu, “Correlation matching in channel estimation for multirate DS/CDMA,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. III, pp. 2581-2584, Orlando, Florida, May 13-17, 2002.

[C241]T. Wang and Z. Xu, “Performance analysis of blind channel estimation for precoded multirate multiuser systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. III, pp. 2741-2744, Orlando, Florida, May 13-17, 2002.

[C242]Z. Xu and T. Wang, “Blind detection of CDMA signals based on Kalman filter,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1545-1549, Pacific Grove, CA, November 5-7, 2001.

[C243]Z. Xu, “Perturbation study on MOE-based multiuser detection,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1733-1737, Pacific Grove, CA, November 5-7, 2001.

[C244]Z. Xu and D. Reitz, “Subspace-based channel estimation for CDMA downlink with aperiodic spreading codes and multiple subchannels,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1728-1732, Pacific Grove, CA, November 5-7, 2001.

[C245]Z. Xu and P. Liu, “Code constrained CMA-based multirate multiuser detection,” Proc. of 35th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1455-1459, Pacific Grove, CA, November 5-7, 2001.

[C246]Z. Xu and P. Liu, “Constrained CMA-based multiuser detection under unknown multipath,” Proc. of 12th IEEE International Symposium on Personal Indoor and Mobile Radio Communication, pp. A21-25, San Diego, CA, September 30-October 3, 2001.

[C247]Z. Xu, “Computationally efficient multiuser detection for aperiodically spreading CDMA systems,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 2249-2252, Salt Lake City, Utah, May 7-11, 2001.

[C248]P. Liu and Z. Xu, “Convergence analysis of a new blind equalization algorithm with M-ary PSK channel inputs,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 2529-2532, Salt Lake City, Utah, May 7-11, 2001.

[C249]Z. Xu, “Blind channel estimation for precoded variable bit-rate multiuser systems,” Proc. of 34th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1273-1277, Pacific Grove, CA, October 29-November 1, 2000.

[C250]Z. Xu, “Improved constrained optimization method for CDMA systems,” Proc. of 34th Asilomar Conf. on Signals, Systems, and Computers, vol. 2, pp. 1293-1297, Pacific Grove, CA, October 29-November 1, 2000.

[C251]Z. Xu, “Asymptotically optimal CDMA receiver: perfect MAI cancellation,” Proc. of IEEE Wireless Communications and Networking Conference, vol. 3, pp. 1496-1500, Chicago, IL, September 23-28, 2000.

[C252]Z. Xu, “New cost function for blind estimation of MPSK signals,” Proc. of IEEE Wireless Communications and Networking Conference, vol. 3, pp. 1501-1505, Chicago, IL, September 23-28, 2000.

[C253]M. Tsatsanis, Z. Xu and X. Lu, “Blind multiuser detectors for dual rate DS-CDMA systems over frequency selective channels,” Proc. of European Signal Processing Conference, vol. 2, pp. 631-634, Tampere, Finland, September 5-8, 2000.

[C254]Z. Xu and P. Liu, “Demodulation of amplitude modulated signals in the presence of multipath,” Proc. of 10th IEEE Workshop on Statistical Signal and Array Processing, pp. 33-37, Pocono Manor, Pennsylvania, August 14-16, 2000.

[C255]Z. Xu and P. Liu, “New criteria for blind equalization of M-PSK signals,” Proc. of 10th IEEE Workshop on Statistical Signal and Array Processing, pp. 692-696, Pocono Manor, Pennsylvania, August 14-16, 2000.

[C256]Z. Xu, “CDMA downlink channel estimation with unknown random spreading codes,” Proc. of IEEE Intl. Conf. on Third Generation Wireless Communications, pp. 313-318, San Francisco, CA, June 14-16, 2000.

[C257]Z. Xu, “Projection-based multiuser receiver over frequency selective channels,” Proc. of Intl. Conf. on Information Technology: Coding and Computing, pp. 92-97, Las Vegas, Nevada, March 27-29, 2000.

[C258]M. Tsatsanis and Z. Xu, “Adaptive blind interference cancellation in CDMA systems,” Proc. of Global Telecommunications Conf., pp. 487-491, Rio de Janeiro, Brazil, December 5-9, 1999.

[C259]Z. Xu and M. Tsatsanis, “Low complexity methods for blind estimation of up-link multipath channels in long code CDMA communications,” Proc. of 3rd IMACS International Multiconference on: Circuits, Systems, Communications and Computers, pp. 95-100, Athens, Greece, July 4-8, 1999.

[C260]Z. Xu and M. Tsatsanis, “On correlation matching approaches for multipath parameter estimation in multiuser CDMA systems,” Proc. of 2nd IEEE Workshop on Signal Processing Advances in Wireless Communications, pp. 38-41, Annapolis, MD, May 9-12, 1999.

[C261]Z. Xu and M. Tsatsanis, “Blind channel estimation for multiuser CDMA systems with long spreading codes,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. 5, pp. 2531-2534, Phoenix, Arizona, March 15-19, 1999.

[C262]Z. Xu and M. Tsatsanis, “Blind stochastic gradient methods for optimal minimum variance CDMA receivers,” Proc. of 32nd Asilomar Conf. on Signals, Systems, and Computers, vol. 1, pp. 660-664, Pacific Grove, CA, Nov. 1-4, 1998.

[C263]M. Tsatsanis and Z. Xu, “Blind channel estimation for CDMA systems with orthogonal modulation,” Proc. of SPIE's 43rd International Symposium, pp. 16-25, San Diego, California, July 19-24, 1998.

[C264]Z. Xu and M. Tsatsanis, “Adaptive minimum variance methods for direct blind multichannel equalization,” Proc. of IEEE Intl. Conf. on Acoustics, Speech, and Signal Proc., vol. IV, pp. 196-199, Seattle, WA, May 12-15, 1998.

[C265]M. Tsatsanis and Z. Xu, “Pilot symbol assisted modulation in frequency selective fading wireless channels,” Proc. of 32nd Conf. on Info. Sciences and Systems, vol. 2, pp. 636-641, Princeton Univ., Princeton NJ, March 18-20, 1998.

[C266]M. Tsatsanis and Z. Xu, “Constrained optimization methods for blind equalization of multiple FIR channels,” Proc. of 31th Asilomar Conf. on Signals, Systems, and Computers, vol.1, pp. 128-132, Pacific Grove, CA, Nov. 3-6, 1997.

[C267]M. Tsatsanis and Z. Xu, “Performance analysis of minimum variance CDMA receivers,” Proc. of 13th Intl. Conf. on Digital Signal Processing, pp. 379-382, Santorini, Greece, July 2-4, 1997.

[C268]M. Tsatsanis and Z. Xu, “On minimum output energy CDMA receivers in the presence of multipath,” Proc. of 31st Conf. on Info. Sciences and Systems, pp. 724-729, Johns Hopkins Univ., Baltimore MD, March 19-21, 1997.