Publications

Last update: 26 October 2018   (Homepage: www2.ee.unsw.edu.au/~wzhang/ )


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Books

 

Book Chapter

 

Journal Papers

Published or To Appear

2018

  1. Y. Huang, Y. Li, H. Ren, J. Lu, and W. Zhang,  Multi-panel MIMO in 5G,” IEEE Communications Magazine, vol. 56, no. 3, pp. 56-61, March 2018.

  2. W. Cheng, W. Zhang, H. Jing, S. Gao, and H. Zhang,  Orbital angular momentum for wireless communications,” IEEE Wireless Communications Magazine, to appear.

  3. L. Bai, L. Zhu, X. Zhang, W. Zhang, and Q. Yu, Multi-satellite relay transmission in 5G: Concepts, techniques and challenges,” IEEE Network Magazine, to appear.

  4. W. Cheng, W. Zhang, L. Liang, and H. Zhang,  Full-duplex for multi-channel cognitive radio ad hoc networks,,” IEEE Network Magazine, to appear.

  5. W. Wang and W. Zhang, Transmit signal designs for spatial modulation with analog phase shifters,” IEEE Transactions on Wireless Communications, vol. 17, no. 5, pp. 3059-3070, May 2018.

  6. P. Pan, H. Wang, Z. Zhao, and W. Zhang, How many antenna arrays are dense enough in massive MIMO systems,” IEEE Transactions on Vehicular Technology, vol. 67, no. 4, pp. 3042-3053, April 2018.

  7. S. Zhang, C. Guo, T. Wang, and W. ZhangOn-off analog beamforming for massive MIMO,” IEEE Transactions on Vehicular Technology, vol. 67, no. 5, pp. 4113-4123, May 2018.

  8. S. Cheng, R. Wang, J. Wu, W. Zhang, and Z. Fang, Performance analysis and beamforming designs of MIMO AF relaying with hardware impairments,” IEEE Transactions on Vehicular Technology, vol. 67, no. 7, pp. 6229-6243, July 2018.

  9. X. Zhang, Y. Ma, Y. Gao, and W. Zhang, “Autonomous compressive sensing augmented spectrum sensing,” IEEE Transactions on Vehicular Technology, vol. 67, no. 8, pp. 6970-6980, August 2018..

  10. Q. Wang, H.-N. Dai, O. Georgiou, Z. Shi, and W. Zhang, Connectivity of underlay cognitive radio networks with directional antennas,” IEEE Transactions on Vehicular Technology, vol. 67, no. 8, pp. 7003-7017, August 2018.

  11. L. Liang, W. Cheng, W. Zhang, and H. Zhang, Mode hopping for anti-jamming in radio vortex wireless communications,” IEEE Transactions on Vehicular Technology, vol. 67, no. 8, pp. 7018-7032, August 2018.

  12. L. Bai, T. Li, Q. Yu, J. Choi, and W. Zhang, Cooperative multiuser beamforming in mmWave distributed antenna systems,” IEEE Transactions on Vehicular Technology, to appear.

  13. Y. Yang, W. Cheng, W. Zhang, and H. Zhang,  Mode modulation for wireless communications with a twist,” IEEE Transactions on Vehicular Technology, to appear.

2017

  1. C. Zhang and W. Zhang, Spectrum sharing for drone networks,” IEEE Journal on Selected Areas in Communications, vol. 35, no. 1, pp. 136-144, January 2017.

  2. W. Wang and W. Zhang, Huffman coding based adaptive spatial modulation,” IEEE Transactions on Wireless Communications, vol. 16, no. 8, pp. 5090-5101, August 2017.

  3. S. Wang, Y. Liu, W. Zhang, and H. Zhang, Achievable rates of full-duplex massive MIMO relay systems over Rician fading channels,” IEEE Transactions on Vehicular Technology, vol. 66, no. 11, pp. 9825-9837, Nov. 2017.

  4. X.-L. Huang, Y. Xu, J. Wu, and W. ZhangNon-cooperative spectrum sensing with historical sensing data mining in cognitive radio,” IEEE Transactions on Vehicular Technology, vol. 66, no. 10, pp. 8863-8871, Oct. 2017.

  5. Y. Ma, Y. Gao, A. Cavallaro, C. G. Parini, W. Zhang, and Y.-C. Liang, Sparsity independent sub-Nyquist rate wideband spectrum sensing on real-time TV white space,” IEEE Transactions on Vehicular Technology, vol. 66, no. 10, pp. 8784-8794, Oct. 2017.

  6. M. Ying, H. Wang, F. Liu, and W. Zhang, Encoding and decoding for multicell massive MIMO systems,” IEEE Transactions on Vehicular Technology, vol. 66, no. 9, pp. 7964-7973, Sept. 2017.

  7. J. Xu, B. Sun, M. Kong, A. Lin, R. Sarwar, J. Han, W. Zhang, and N. Deng, Underwater wireless optical communication using a blue-light leaky feeder,” Optics Communications, vol. 397, 15 August 2017, pp. 51–54.

  8. J. Xu, B. Sun, W. Lyu. M. Kong, R. Sarwar, J. Han, W. Zhang, and N. Deng, Underwater fiber–wireless communication with a passive front end,” Optics Communications, vol. 402, 1 November 2017, pp. 260–264.

  9. Y. Song, W. Lu, B. Sun, Y. Hong, F. Qu, J. Han, W. Zhang, J. Wu, Experimental demonstration of MIMO-OFDM underwater wireless optical communication,” Optics Communications, vol. 403, 15 November 2017, pp. 205–210.

2016

  1. W. Wang and W. Zhang, Signal shaping and precoding for MIMO systems using lattice codes,” IEEE Transactions on Wireless Communications, vol. 15, no 7, pp. 4625-4634, July 2016.

  2. L. P. Qian, Y. Wu, J. Wang, and W. Zhang, “Energy-efficient distributed user scheduling in relay-assisted cellular networks,” IEEE Transactions on Wireless Communications, vol. 15, no. 6, pp. 4060-4073, June 2016.

  3. R. Cai, W. Zhang, and P. C. Ching, Cost-efficient optimization of base station densities for multi-tier heterogeneous cellular networks,” IEEE Transactions on Wireless Communications, vol. 15, no. 3, pp. 2381-2393, March 2016.

  4. Y. Liu, W. Zhang, and P. C. Ching, Time-reversal space-time codes in asynchronous two-way relay networks,” IEEE Transactions on Wireless Communications, vol. 15, no. 3, pp. 1729-1741, March 2016.

  5. H. Wang, M. Zhou, R. Chen, and W. Zhang, On error rate performance of multi-cell massive MIMO systems with linear receivers,” Physical Communication, vol. 20, pp. 123-132, September 2016.

2015

  1. R. Ma and W. Zhang, “Adaptive MQAM for energy harvesting wireless communications with 1-bit channel feedback,” IEEE Transactions on Wireless Communications, vol. 14, no. 11, pp. 6459-6470, Nov. 2015.

  2. L. Yang, W. Zhang, and S. Jin, “Interference alignment in device-to-device LAN underlaying cellular networks,” IEEE Transactions on Wireless Communications, vol. 14, no. 7, pp. 3715-3723, July 2015.

  3. L. Qian, S. Zhang, W. Zhang, and Y.-J. Zhang, “System utility maximization with interference processing for cognitive radio networks,” IEEE Transactions on Communications, vol. 63, no. 5, pp. 1567-1579, May 2015. 

  4. R. Cai, J.-K. Zhang, T. N. Davidson, W. Zhang, K. M. Wong, and P. C. Ching, A power allocation strategy for multiple Poisson spectrum sharing networks,” IEEE Transactions on Wireless Communications, vol. 14, no. 4, 1785-1799, April 2015.

  5. L. Yang and W. Zhang, “On degrees of freedom region of three-user MIMO interference channels,” IEEE Transactions on Signal Processing, vol. 63, no. 3, pp. 590-603, Feb. 2015.

2014

  1. Z. Wang and W. Zhang, “Opportunistic spectrum sharing with limited feedback in Poisson cognitive radio networks, IEEE Transactions on Wireless Communications, vol. 13, no. 12, pp. 7098-7109, Dec. 2014.

  2. L. Yang and W. Zhang, “Interference alignment with asymmetric complex signaling on MIMO X channels,” IEEE Transactions on Communications, vol. 62, no. 10, pp. 3560-3570, Oct. 2014.

  3. T. Yang, G. Mao, and W. Zhang, and X. Tao, “Transport capacity of distributed wireless CSMA networks,” IEEE Transactions on Wireless Communications, vol. 13, no. 10, pp. 5635-5647, Oct. 2014.

  4. Y. Lu, W. Zhang, and K. B. Letaief, “Blind interference alignment with diversity in K-user interference channels,” IEEE Transactions on Communications, vol. 62, no. 8, pp. 2850-2859, August 2014.

  5. Y. Liu, W. Zhang, S. C. Liew, and P. C. Ching, Bounded delay-tolerant space-time codes for distributed antenna systems,” IEEE Transactions on Wireless Communications, vol. 13, no. 8, pp. 4644-4655, Aug. 2014.

  6. S. Zhang, Q. Zhou, C. Kai, and W. Zhang, “Full diversity physical-layer network coding  in two-way relay channels with multiple antennas,” IEEE Transactions on Wireless Communications, vol. 13, no. 8, pp. 4273-4282, Aug. 2014.

  7. C. Zhai, W. Zhang, and G. Mao, “Cooperative spectrum sharing between cellular and ad-hoc networks,” IEEE Transactions on Wireless Communications, vol. 13, no. 7, pp. 4025-4037, July 2014.

  8. Z. Wang and W. Zhang, “Exploiting multiuser diversity with 1-bit feedback for spectrum sharing,” IEEE Transactions on Communications, vol. 62, no. 1, pp. 29-40, January 2014.

2013

  1. L. Shi, W. Zhang, and X.-G. Xia, Space-time block code designs for two-user MIMO X channels, IEEE Transactions on Communications, vol. 61, no. 9, pp. 3806-3815, September 2013.

  2. L. Shi, W. Zhang, and X.-G. Xia, Space-frequency codes for MIMO-OFDM systems with partial interference cancellation group decoding, IEEE Transactions on Communications, vol. 61, no. 8, pp. 3270-3280, August 2013.

  3. C. Zhai and W. Zhang, Adaptive spectrum leasing with secondary user scheduling in cognitive radio networks,” IEEE Transactions on Wireless Communications, vol. 12, no. 7, pp. 3388-3398, July 2013.

  4. C. Zhai, W. Zhang, and P. C. Ching, Cooperative spectrum sharing based on two-path successive relaying,” IEEE Transactions on Communications, vol. 61, no. 6, pp. 2260-2270, June 2013.

  5. Z. Wang and W. Zhang, “Spectrum sharing with limited channel feedback,” IEEE Transactions on Wireless Communications, vol. 12, no. 5, pp. 2524-2532, May 2013.

  6. J. C. F. Li, W. Zhang, A. Nosratinia, and J. Yuan, “SHARP: Spectrum harvesting with ARQ retransmission and probing in cognitive radio,IEEE Transactions on Communications, vol. 61, no. 3, pp. 951-960, March 2013.

2012

  1. L. Shi, W. Zhang, and X.-G. Xia, “On designs of full diversity space-time block codes for two-user MIMO interference channels,IEEE Transactions on Wireless Communications, vol. 11, no. 11, pp. 4184-4191, Nov. 2012.

  2. C. Zhai, W. Zhang, and G. Mao, “Uncoordinated cooperative communications with spatially random relays,” IEEE Transactions on Wireless Communications, vol. 11, no. 9, pp. 3126-3135, Sep. 2012.

  3. Y. Lu, W. Zhang, and X.-G. Xia, “On diversity and multiplexing tradeoff of two-layer D-BLAST with group zero-forcing detection,” IEEE Transactions on Communications, vol. 60, no. 8, pp. 2255-2264, August 2012.

  4. T. Yang, G. Mao, and W. Zhang, “Connectivity of large-scale CSMA networks,” IEEE Transactions on Wireless Communications, vol. 11, no. 6, pp. 2266-2275, June 2012.

  5. W. Zhang, T. Xu, and X.-G. Xia, “Two designs of space-time block codes achieving full diversity with partial interference cancellation group decoding,” IEEE Transactions on Information Theory, vol. 58, no. 2, pp. 747-764, February 2012.

  6. L. Shen, H. Wang, W. Zhang, and Z. Zhao, “Multiple antennas assisted blind spectrum sensing in cognitive radio channels,” IEEE Communications Letters, vol. 16, no. 1, pp. 92-94, January 2012.  

2011

  1. J. C. F. Li, W. Zhang, and J. Yuan, “Opportunistic spectrum sharing in cognitive radio networks based on primary limited feedback, IEEE Transactions on Communications, vol. 59, no. 12, pp. 3272-3277, December 2011.

  2. F. Tian, W. Zhang, W.-K. Ma, P. C. Ching, and H. V. Poor, “An effective distributed space-time code for two-path successive relay network,” IEEE Transactions on Communications,  vol. 59, no. 8, pp. 2254-2263, August 2011.

  3. L. Shen, H. Wang, W. Zhang, and Z. Zhao, “Blind spectrum sensing for cognitive radio channels with noise uncertainty,” IEEE Transactions on Wireless Communications, vol. 10, no. 6, pp. 1721-1724, June 2011.

  4. L. Shi, W. Zhang, and X.-G. Xia, “High-rate and full-diversity space-time block codes with low complexity partial interference cancellation group decoding,IEEE Transactions on Communications, vol. 59, no. 5, pp. 1201-1207, May 2011.

2010

  1. T. Yang, J. Yuan, and W. Zhang, “Recovering cooperative multiplexing gain in wireless relay networks,IEEE Transactions on Communications, vol. 58, no. 12, pp. 3538-3549, Dec. 2010.

  2. W. Zhang and K. B. Letaief, “A systematic design of full diversity multiuser space-frequency codes,IEEE Transactions on Signal Processing, vol. 58, no. 3, pp. 1732-1740, Mar. 2010.

  3. M. Xie, W. Zhang, and K.-K. Wong, “A geometric approach to improve spectrum efficiency for cognitive relay networks,” IEEE Transactions on Wireless Communications, vol. 9, no. 1, pp. 268-281, Jan. 2010.

2009

  1. W. Zhang, R. K. Mallik, and K. B. Letaief, “Optimization of cooperative spectrum sensing with energy detection in cognitive radio networks,” IEEE Transactions on Wireless Communications, vol. 8, no. 12, pp. 5761-5766, Dec. 2009.

  2. H. Wang, E.-H. Yang, Z. Zhao, and W. Zhang, “Spectrum sensing in cognitive radio using goodness of fit testing,” IEEE Transactions on Wireless Communications, vol. 8, no. 11, pp. 5427-5430, Nov. 2009.

  3. K. Hamdi, W. Zhang, and K. B. Letaief, “Opportunistic spectrum sharing in cognitive MIMO wireless networks,” IEEE Transactions on Wireless Communications, vol. 8, no. 8, pp. 4098-4109, Aug. 2009.

  4. K. B. Letaief and W. Zhang, Cooperative communications for cognitive radio networks,” Proceedings of the IEEE, vol. 97, no. 5, pp. 878-893, May 2009.

  5. Y. Li, W. Zhang, and X.-G. Xia, “Distributive high-rate space-frequency codes achieving full cooperative and multipath diversities for asynchronous cooperative communications,” IEEE Transactions on Vehicular Technology, vol. 58, no. 1, pp. 207-217, Jan. 2009.

2008

  1. W. Zhang and K. B. Letaief, “Cooperative spectrum sensing with transmit and relay diversity in cognitive radio networks,” IEEE  Transactions on Wireless Communications, vol. 7, no. 12, pp. 4761-4766, Dec. 2008.

  2. W. Zhang and K. B. Letaief, “Full-rate distributed space-time codes for cooperative communications,” IEEE Transactions on Wireless Communications, vol. 7, no. 7, pp. 2446-2451, July 2008.

  3. W. Zhang, Y. Li, X.-G. Xia, P. C. Ching, and K. B. Letaief, “Distributed space-frequency coding for cooperative diversity in broadband wireless ad hoc networks,” IEEE Transactions on Wireless Communications, vol. 7, no. 3, pp. 995-1003, Mar. 2008. 

2007

  1. W. Zhang and K. B. Letaief, “MIMO broadcast scheduling with limited feedback,” IEEE Journal on Selected Areas in Communications, vol. 25, no. 7, pp. 1457-1467, Sep. 2007.

  2. W. Zhang, X.-G. Xia, and K. B. Letaief, “Space-time/frequency coding for MIMO-OFDM in next generation broadband wireless systems,” IEEE Wireless Communications, vol. 14, no. 3, pp. 32-43, June 2007.

  3. W. Zhang, X.-G. Xia, and P. C. Ching, “Full-diversity and fast ML decoding properties of general orthogonal space-time block codes for MIMO-OFDM systems,” IEEE Transactions on Wireless Communications, vol. 6, no. 5, pp. 1647-1653, May 2007.  

  4. W. Zhang, X.-G. Xia, and P. C. Ching, “High-rate full-diversity space-time-frequency codes for broadband MIMO block fading channels,” IEEE Transactions on Communications, vol. 55, no. 1, pp. 25-34, Jan. 2007.

  5. W. Zhang, X.-G. Xia, and P. C. Ching, “Clustered pilot tones for carrier frequency offset estimation in OFDM systems,” IEEE Transactions on Wireless Communications, vol. 6, no. 1, pp. 101-109, Jan. 2007.

2006

  1. W. Zhang, X.-G. Xia, and P. C. Ching, “Optimal training and pilot pattern design for OFDM systems in Rayleigh fading,” IEEE Transactions on Broadcasting, vol. 52, no. 4, pp. 505-514, Dec. 2006.  

  2. W. Zhang, “Comments on `Maximum diversity in single-carrier frequency-domain equalization',” IEEE Transactions on Information Theory, vol. 52, no. 3, pp. 1275-1277, Mar. 2006. 

 

Conference Papers

Published or To Appear

2018

  1. L. Liang, W. Cheng, W. Zhang, H. Zhang, “Orthogonal frequency and mode division multiplexing for wireless communications” in Proc. IEEE Global Communications Conference (GLOBECOM 2018), Abu Dhabi, UAE, Dec. 9-13, 2018.

  2. R. Wang, X. Yuan, J. Wu, and W. Zhang, “Optimal DoF region of MIMO Y channel with hybrid data exchanges,” in Proc. IEEE Global Communications Conference (GLOBECOM 2018), Abu Dhabi, UAE, Dec. 9-13, 2018.

  3. L. Yang and W. Zhang, “Hierarchical codebook and beam alignment for UAV communications,” in Proc. IEEE Global Communications Conference (GLOBECOM 2018) - Workshop on Wireless Networking and Control for UAV, Abu Dhabi, UAE, Dec. 9-13, 2018.

  4. Y. Xiao, W. Cheng, W. Zhang, and T. Sun, QoS guarantee for energy harvesting cognitive radio networks, in Proc. IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (DySPAN 2018), Seoul, Korea, Oct. 22-25, 2018.

  5. W. Wang, W. Zhang, Y. Li, and J. Lu, “Channel estimation and hybrid precoding for multi-panel millimeter wave MIMO,” in Proc. IEEE International Conference on Communications (ICC 2018), Kansas City, MO, USA, May 20-24, 2018.

  6. L. Zhou, Z. Yang, S. Zhou, and W. Zhang, Coverage probability analysis of UAV cellular networks in urban environments,” in Proc. IEEE International Conference on Communications (ICC 2018) - Workshop on Integrating UAVs into 5G, Kansas City, MO, USA, May 20-24, 2018.

2017

  1. W. Wang and W. Zhang, “Antenna subset selection for line-of-sight millimeter wave massive MIMO systems,” in Proc. the 23rd Asia Pacific Conference on Communications (APCC 2017), Perth, Australia, December 11-13, 2017.

  2. W. Wang and W. Zhang, “Optimal signal constellation for downlink two-user NOMA,” in Proc. the 23rd Asia Pacific Conference on Communications (APCC 2017), Perth, Australia, December 11-13, 2017.

  3. Q. Wang, H.-N. Dai, and W. Zhang, “Transmission probability of energy harvesting-based cognitive radio networks with directional antennas,” in Proc. the 23rd Asia Pacific Conference on Communications (APCC 2017), Perth, Australia, December 11-13, 2017.

  4. Y. Yang, W. Cheng, W. Zhang, H. Zhang, Mode modulation for orbital-angular-momentum based wireless vorticose communications,” in Proc. IEEE Global Communications Conference (GLOBECOM 2017), Singapore, Dec. 4-8, 2017.

  5. Y. Gao, W. Cheng, W. Zhang, H. Zhang, Energy efficiency optimization with statistical QoS provisioning for energy harvesting networks,” in Proc. IEEE Global Communications Conference (GLOBECOM 2017), Singapore, Dec. 4-8, 2017.

  6. F. Li, H. Wang, M. Ying, and W. Zhang, “Channel estimation using superimposed pilots and second order statistics for massive MIMO networks,” in Proc. IEEE 18th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2017), Sapporo, Japan, July 3-6, 2017.

  7. H. Liang, X. Zhao, and W. Zhang, “Optimal power allocation for multichannel energy harvesting cognitive radio,” in Proc. IEEE Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM 2017), Macau, June 12-15, 2017.

  8. S. Zhang, C. Guo, T. Wang, and W. Zhang, “On-off analog beamforming with per-antenna power constraint,” in Proc. IEEE 85th Vehicular Technology Conference (VTC2017 Spring), Sydney, Australia, June 4-7, 2017.

  9. W. Wang and W. Zhang, “Spatial modulation using analog phase shifters,” in Proc. IEEE International Conference on Communications (ICC 2017), Paris, France, May 21-25, 2017.

  10. W. Z. Zhang and W. Zhang, “On optimal training in massive MIMO systems with insufficient pilots,” in Proc. IEEE International Conference on Communications (ICC 2017), Paris, France, May 21-25, 2017.

2016

  1. Y. Gao, Y. Ma, W. Zhang, and R. Cepeda, “Data-assisted sub-Nyquist spectrum sensing,” in Proc. IEEE Internal Conference on Communication Systems (ICCS 2016), Shenzhen, China, Dec. 14-16, 2016.

  2. C. Zhang and W. Zhang, “Spectrum sharing in drone small cells,” in Proc. IEEE Global Communications Conference (GLOBECOM 2016), Washington, DC, USA, Dec. 4-8, 2016.

  3. W. Wang and W. Zhang, “Adaptive spatial modulation using Huffman coding,” in Proc. IEEE Global Communications Conference (GLOBECOM 2016), Washington, DC, USA, Dec. 4-8, 2016.

  4. F. Li, H. Wang, M. Ying, W. Zhang, and J. Lu, “Channel estimations based on superimposed pilots for massive MIMO uplink systems,” in Proc. IEEE Int. Conf. on Wireless Communications and Signal Processing (WCSP 2016), Yangzhou, China, Oct. 13-15, 2016.

  5. M. Ying, H. Wang, W. Zhang, and J. Lu, “Pilot contamination alleviated coding and decoding for multicell massive MIMO systems,” in Proc. IEEE Int. Conf. on Wireless Communications and Signal Processing (WCSP 2016), Yangzhou, China, Oct. 13-15, 2016.

  6. W. Wang and W. Zhang, “Signal shaping based lattice codes for MIMO systems,” in Proc. IEEE International Conference on Communications in China (ICCC 2016), Chengdu, China, July 27-29, 2016.

  7. H. Wang, X. Yue, D. Qiao, and W. Zhang, “A massive MIMO system with space-time block codes,” in Proc. IEEE International Conference on Communications in China (ICCC 2016), Chengdu, China, July 27-29, 2016.

  8. P. Pan, H. Wang, Z. Zhao, and W. Zhang, “On the sum-rate of the uplink massive MIMO systems with multiple compact antenna arrays,” in Proc. IEEE International Conference on Communications in China (ICCC 2016), Chengdu, China, July 27-29, 2016.

  9. L. Qian, Y. Wu, L. Huang, and W. Zhang, “Optimal user association and resource allocation for device-to-device communications underlaying cellular networks,” in Proc. International Conference on Computing, Networking and Communications (ICNC 2016), Kauai, Hawaii, USA, Feb. 15-18, 2016.

2015

  1. Y. Gan, C. Jiang, W. Zhang, N. Beaulieu, and Y. Ren, “Incentive attack prevention for collaborative spectrum sensing: A peer-prediction method,” in Proc. IEEE Global Communications Conference (GLOBECOM 2015), San Diego, CA, USA, Dec. 6-10, 2015.

  2. H.-N. Dai, C.-W. Wong, W. Zhang, and L. Fu, “On percolation connectivity of large scale wireless networks with directional antennas,” in Proc. IEEE International Symposium on Personal, Indoor, Mobile Radio Communications (PIMRC 2015), Hong Kong, Aug. 30 - Sep. 2, 2015, pp. 1487-1492.

  3. R. Ma and W. Zhang, “Variable-rate variable-power MQAM for energy harvesting communications with 1-bit feedback,” in Proc. IEEE International Conference on Communications (ICC 2015), London, UK, June 8-12, 2015, pp. 4670-4674.

  4. W. Wang and W. Zhang, “Diagonal precoder designs for spatial modulation,” in Proc. IEEE International Conference on Communications (ICC 2015), London, UK, June 8-12, 2015, pp. 2411-2415.

  5. Y. Liu, W. Zhang, and P. C. Ching, “Time-reversal space-time codes in asynchronous two-way double-antenna relay networks,”  in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2015), Brisbane, Australia, April 19-24, 2015, pp. 3118-3122.

  6. R. Cai, W. Zhang, and P. C. Ching,Optimal base station densities for cost-efficient multi-tier heterogeneous cellular networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2015), Brisbane, Australia, April 19-24, 2015, pp. 2889-2893.

2014

  1. L. Yang and W. Zhang, “Degrees of freedom of relay-assisted MIMO interfering broadcast channels,” in Proc. IEEE Global Communications Conference (GLOBECOM 2014), Austin, TX, USA, Dec. 8-12, 2014, pp. 3833-3837.

  2. Y. Lu and W. Zhang, “Downlink blind interference alignment for cellular networks,” in Proc. IEEE Global Communications Conference (GLOBECOM 2014), Austin, TX, USA, Dec. 8-12, 2014, pp. 3337-3342.

  3. T. Yang, G. Mao, and W. Zhang, “Connectivity of wireless information-theoretic secure networks,” in Proc. IEEE Global Communications Conference (GLOBECOM 2014), Austin, TX, USA, Dec. 8-12, 2014, pp. 317-323.

  4. R. Ma and W. Zhang, “Optimal power allocation for energy harvesting communications with limited channel feedback,” in Proc. IEEE Global Conference on Signal and Information Processing (GlobalSIP 2014), Atlanta, USA, Dec. 3-5, 2014, pp. 193-197.

  5. L. Qian, S. Zhang, W. Zhang, Y.-J. Zhang, “Interference-aware system utility maximization for cognitive radio networks,” (invited paper) in Proc. IEEE Global Conference on Signal and Information Processing (GlobalSIP 2014), Atlanta, USA, Dec. 3-5, 2014, pp. 1160-1164.

  6. L. Yang and W. Zhang, “Interference alignment in device-to-device LAN underlaying cellular networks,” (invited paper) in Proc. International Conference on Communication Systems (ICCS 2014), Macau, China, Nov. 19-21, 2014, pp. 21-25.

  7. C. Zhang and W. Zhang, “Spectrum sharing in ad hoc networks with antenna diversity,” (invited paper) in Proc. International Conference on Communication Systems (ICCS 2014), Macau, China, Nov. 19-21, 2014, pp. 51-55.

  8. L. Yang and W. Zhang, “On achievable degrees of freedom of 3-user MIMO interference channels,” in Proc. IEEE Information Theory Workshop (ITW 2014), Hobart, Tasmania, Australia, Nov. 2-5, 2014, pp. 97-101.

  9. Z. Wang and W. Zhang, “Spectrum sharing with limited feedback in Poisson cognitive network,” in Proc. IEEE International Conference on Communications (ICC 2014), Sydney, Australia, June 10-14, 2014, pp. 1441-1446.

  10. Z. Wang and W. Zhang, “Opportunistic cognitive relay with 1-bit feedback,” in Proc. IEEE International Conference on Communications (ICC 2014), Sydney, Australia, June 10-14, 2014, pp. 4360-4365.

  11. Y. Liu, W. Zhang, S. C. Liew, and P. C. Ching, “Achieving full-diversity and fast maximum likelihood decoding in asynchronous analogue network coding,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014),  Florence, Italy, May 4-9, 2014, pp. 4279-4283.

  12. L. Yang, W. Zhang, N. Zheng, and P. C. Ching, “Opportunistic user scheduling in MIMO cognitive radio networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014),  Florence, Italy, May 4-9, 2014, pp. 7303-7307.

  13. R. Cai, W. Zhang, P. C. Ching, T. N. Davidson, J.-K. Zhang, “Performance of partial zero-forcing beamforming in large random spectrum sharing networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014),  Florence, Italy, May 4-9, 2014, pp. 6989-6993.

2013

  1. Y. Lu and W. Zhang, Blind interference alignment in the K-user MISO interference channel,” in Proc. IEEE Global Communications Conference (GLOBECOM 2013), Atlanta, GA, USA, Dec. 9-13, 2013, pp. 3464-3469.

  2. L. Yang, W. Zhang, and S. A. Jafar, Degrees of freedom region of three-user MIMO interference channels,” in Proc. IEEE Global Communications Conference (GLOBECOM 2013), Atlanta, GA, USA, Dec. 9-13, 2013, pp. 1791-1795.

  3. G. Mao, Z. Lin, and W. Zhang, “A capacity upper bound for large wireless networks with generally distributed nodes,” in Proc. IEEE Global Communications Conference (GLOBECOM 2013), Atlanta, GA, USA, Dec. 9-13, 2013, pp. 347-352.

  4. Y. Lu, W. Zhang, and K. B. Letaief, “Blind interference alignment with diversity in two-user interference channel,” (invited paper) in Proc. IEEE International Conference on Communications in China (ICCC 2013), Xi'an, China, Aug. 12-14, 2013, pp. 275-280.

  5. T. Zhang, W. Chen, W. Zhang, and Z. Cao, “DF-AF selection MIMO relaying with orthogonal space-time block codes in wireless networks,” in Proc. IEEE International Conference on Communications in China (ICCC 2013), Xi'an, China, Aug. 12-14, 2013, pp. 466-471.

  6. L. Yang and W. Zhang, “Opportunistic interference alignment in heterogeneous two-cell uplink network,” in Proc. IEEE International Conference on Communications (ICC 2013), Budapest, Hungary, June 9-13, 2013, pp. 5448-5452.

  7. Z. Wang and W. Zhang, “Multiuser scheduling with limited feedback for cognitive radio,” in Proc. IEEE International Conference on Communications (ICC 2013), Budapest, Hungary, June 9-13, 2013, pp. 2880-2884.

  8. L. Shi, W. Zhang, and X.-G. Xia, “Full-diversity STBC designs for two-user MIMO X channels,” in Proc. IEEE International Conference on Communications (ICC 2013), Budapest, Hungary, June 9-13, 2013, pp. 5764-5768.

  9.  S. Zhang, Q. Zhou, C. Kai, and W. Zhang, “Channel quantization based physical-layer network coding,” in Proc. IEEE International Conference on Communications (ICC 2013), Budapest, Hungary, June 9-13, 2013, pp. 5137-5142.

  10. C. Zhai, W. Zhang, and G. Mao, “Cooperative spectrum sharing in wireless ad-hoc networks,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013),  Vancouver, Canada, May 26-31, 2013, pp. 5293-5297.

  11. Y. Liu, W. Zhang, and P. C. Ching, “Full-diversity distributed space-time codes with an efficient ML decoder for asynchronous cooperative communications,” in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2013),  Vancouver, Canada, May 26-31, 2013, pp. 5011-5015.

  12. C. Zhai and W. Zhang, Multiuser diversity of spectrum leasing in cognitive radio networks,” (invited paper) in Proc. IEEE International Wireless Symposium (IWS 2013), Beijing, China, Apr. 14-18, 2013.

  13. Y. Lu and W. Zhang, “Water-filling capacity analysis in large MIMO systems,” in Proc. IEEE Computers, Communications and IT Applications Conference (COMCOMAP 2013), Hong Kong, Apr. 1-4, 2013, pp. 186-190.

    2012

  14.  Z. Wang and W. Zhang, ``Spectrum sharing with primary and secondary limited feedback in cognitive radio networks,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2012), Anaheim, CA, USA, Dec. 3-7, 2012, pp. 1218-1222.

  15. C. Zhai, W. Zhang, and P. C. Ching, ``Spectrum leasing based on bandwidth efficient relaying in cognitive radio networks,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2012), Anaheim, CA, USA, Dec. 3-7, 2012, pp. 4927-4932.

  16. T. Yang, G. Mao, and W. Zhang, ``An upper bound on transmission capacity of wireless CSMA networks,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2012), Anaheim, CA, USA, Dec. 3-7, 2012, pp. 458-463.

  17. L. Shi, W. Zhang, and X.-G. Xia, ``On space-time bock codes for two-user MIMO interference channels,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2012) - Broadband Wireless Access Workshop, Anaheim, CA, USA, Dec. 3-7, 2012, pp. 75-79.

  18. C. Zhai and W. Zhang, "Spectrum and energy efficient cognitive relay for spectrum leasing," (invited paper) in Proc. IEEE International Conference on Communication Systems (ICCS 2012), Singapore, Nov. 21-23, 2012, pp. 240-244.

  19. T. Yang, G. Mao, and W. Zhang, "A necessary condition for connected wireless CSMA multi-hop networks," in Proc. IEEE International Symposium on Personal, Indoor, Mobile Radio Communications (PIMRC 2012), Sydney, Australia, Sep. 9-12, 2012, pp. 1528-1533.

  20. Z. Wang, W. Zhang, and K. B. Letaief, "Relay assisted spectrum sharing in cognitive radio networks," in Proc. IEEE International Conference on Communications (ICC 2012),  Ottawa, Canada, June 10-15, 2012, pp. 4431-4435.

  21. L. Yang and W. Zhang, "Asymmetric interference alignment and cancelation for 3-user MIMO interference channels," in Proc. IEEE International Conference on Communications (ICC 2012),  Ottawa, Canada, June 10-15, 2012, pp. 2260-2264.

  22. C. Zhai, W. Zhang, and G. Mao, "Uncoordinated cooperative truncated ARQ scheme in wireless systems," in Proc. IEEE International Conference on Communications (ICC 2012),  Ottawa, Canada, June 10-15, 2012, pp. 3910-3914.

  23. T. Xu, X.-G. Xia, and W. Zhang, "A full diversity PIC group decoding for a family of space-time block codes," in Proc. IEEE International Conference on Communications (ICC 2012),  Ottawa, Canada, June 10-15, 2012, pp. 4229-4233.

  24. T. Yang, G. Mao, and W. Zhang, "Capacity of interference-limited three dimensional CSMA networks," in Proc. IEEE International Conference on Communications (ICC 2012),  Ottawa, Canada, June 10-15, 2012, pp. 5010-5014.

  25. C. Zhai, W. Zhang, and P. C. Ching, ``Spectrum sharing based on two-path successive relaying,'' in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2012),  Kyoto, Japan, Mar. 25-30, 2012, pp. 2909-2912.

  26. R. Cai, W. Zhang, and P. C. Ching, "Spectrum sharing between random geometric networks," in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2012),  Kyoto, Japan, Mar. 25-30, 2012, pp. 3137-3140.

2011

  1. Y. Lu, W. Zhang, and X.-G. Xia, ``D-BLAST with group zero-forcing detection: diversity and multiplexing tradeoff analysis,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2011) - Broadband Wireless Access Workshop, Houston, USA, Dec. 5-9, 2011.

  2. L. Shi, W. Zhang, and X.-G. Xia, ``On space-frequency code design with partial interference cancellation group decoding,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2011),  Houston, USA, Dec. 5-9, 2011.

  3. L. Yang and W. Zhang, ``On design of asymmetric interference alignment and cancellation scheme in MIMO X Network,'' in Proc. IEEE Int. Conf. on Wireless Communications and Signal Processing (WCSP 2011), Nanjing, China, Nov. 9-11, 2011. (invited paper)

  4. Y. Li, A. Nosratinia, and W. Zhang, ``Opportunistic cooperation for distributed spectrum sensing in cognitive radio,'' in Proc. IEEE International Conference on Communications (ICC 2011),  Kyoto, Japan, June 5-9, 2011.

  5. T. Yang, G. Mao, and W. Zhang, ``Connectivity of wireless CSMA multi-hop networks,'' in Proc. IEEE International Conference on Communications (ICC 2011),  Kyoto, Japan, June 5-9, 2011.

  6. L. Shi, W. Zhang, and P. C. Ching, ``Single-symbol decodable distributed STBC for two-path successive relay networks,'' in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011),  Prague, Czech Republic, May 22-27, 2011, pp. 3324-3327.

2010

  1. L. Shi, W. Zhang, and X.-G. Xia, ``A design of high-rate full-diversity STBC with low-complexity PIC group decoding,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2010),  Miami, USA, Dec. 6-10, 2010.

  2. Z. Wang and W. Zhang, ``Opportunistic spectrum access in cognitive relay networks based on white space modeling,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2010),  Miami, USA, Dec. 6-10, 2010.

  3. F. Tian, W. Zhang, W.-K. Ma, and P. C. Ching, "Distributed space-time coding for two-path successive relaying,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2010),  Miami, USA, Dec. 6-10, 2010.

  4. J. C. F. Li, W. Zhang, A. Nosratinia, and J. Yuan, ``Opportunistic spectrum sharing based on exploiting ARQ retransmission in cognitive radio networks," in Proc. IEEE Global Communications Conference (GLOBECOM 2010),  Miami, USA, Dec. 6-10, 2010.

  5. J. Zhu, J. Huang, and W. Zhang, "Optimal one-dimensional relay placement in cognitive radio networks," in Proc. IEEE Int. Conf. on Wireless Communications and Signal Processing (WCSP 2010), Suzhou, China, Oct. 21-23, 2010. (invited paper)

  6. W. Zhang, L. Shi, and X.-G. Xia, "A systematic design of space-time block codes with reduced-complexity partial interference cancellation group decoding," in Proc. IEEE International Symposium on Information Theory (ISIT 2010), Austin, TX, USA, June 13-18, 2010, pp. 1066-1070.

  7. W. Zhang and Z. Han, ``Opportunistic feedback in collaborative spectrum sensing for cognitive radio,'' in Proc. IEEE International Wireless Communications and Networking Conference (WCNC 2010), Sydney, Australia, Apr. 18-21, 2010.

  8. Q. Chen, C. T. Chou, S. Kanhere, W. Zhang, and Sanjay Jha, ``Performance of multi-hop whisper cognitive radio networks,'' in Proc. IEEE Symposia on New Frontiers in Dynamic Spectrum Access Networks (DySPAN 2010), Singapore, Apr. 6-9, 2010.

2009

  1. W. Zhang and X.-G. Xia, ``A systematic design of space-time block codes achieving full-diversity and partial interference cancellation group decoding,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2009),  Hawaii, USA, Nov. 30-Dec. 4, 2009.

  2. H. Wang and W. Zhang, ``Anderson-Darling sensing of existence of unknown signals in a fading channel,'' in Proc. 5th Int. Conf. Wireless Communications, Networking and Mobile Computing (WiCom 2009), Beijing, China, Sept. 24-26.

  3. W. Zhang and J. Yuan, ``Linear receiver based high-rate space-time block codes,'' in Proc. IEEE International Symposium on Information Theory (ISIT 2009),  Seoul, Korea, June 29-July 3, 2009, pp. 94-98.

  4. W. Zhang and J. Yuan, ``A simple design of space-time block codes achieving full diversity with linear receivers,'' in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2009),  Taipei, Apr. 20-24, 2009, pp. 2729-2732.

2008

  1. W. Zhang and K. B. Letaief, ``Opportunistic relaying for dual-hop wireless MIMO channels,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2008),  New Orleans, LA, USA, Nov. 30-Dec. 4, 2008.

  2. W. Zhang, R. K. Mallik, and K. B. Letaief, ``Cooperative spectrum sensing optimization in cognitive radio networks,'' in Proc. IEEE International Conference on Communications (ICC 2008),  Beijing, China, May 19-23, 2008, pp. 3411-3415.

  3. K. Hamdi, W. Zhang, and K. B. Letaief, ``Low-complexity antenna selection and user scheduling in cognitive MIMO broadcast systems,'' in Proc. IEEE International Conference on Communications (ICC 2008),  Beijing, China, May 19-23, 2008, pp. 4038-4042.

  4. Y. Shi, W. Zhang, and K. B. Letaief, ``Cooperative multiplexing and scheduling in wireless relay networks,'' in Proc. IEEE International Conference on Communications (ICC 2008),  Beijing, China, May 19-23, 2008, pp. 3034-3038.

2007

  1. W. Zhang, and K. B. Letaief, ``Bandwidth efficient cooperative diversity for wireless networks,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2007),  Washington DC, USA, Nov. 26-30, 2007, pp. 2942-2946.

  2. K. Hamdi, W. Zhang, and K. B. Letaief, ``Joint beamforming and scheduling in cognitive radio networks,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2007),  Washington DC, USA, Nov. 26-30, 2007, pp. 2977-2981. 

  3. W. Zhang and K. B. Letaief, ``A systematic design of multiuser space-frequency codes for MIMO-OFDM systems,'' in Proc. IEEE International Conference on Communications (ICC 2007), Glasgow, Scotland, UK, June 24-28, 2007, pp. 1054-1058.

  4. W. Zhang and K. B. Letaief, ``On the achievable throughput of MIMO broadcast channels with finite rate feedback,'' in Proc. IEEE International Conference on Communications (ICC 2007), Glasgow, Scotland, UK, June 24-28, 2007, pp. 2534-2539.

  5. K. Hamdi, W. Zhang, and K. B. Letaief, ``Power control in cognitive radio systems based on spectrum sensing side information,'' in Proc. IEEE International Conference on Communications (ICC 2007), Glasgow, Scotland, UK, June 24-28, 2007, pp. 5161-5165. 

  6. C. Sun, W. Zhang, and K. B. Letaief, ``Cluster-based cooperative spectrum sensing in cognitive radio systems,'' in Proc. IEEE International Conference on Communications (ICC 2007), Glasgow, Scotland, UK, June 24-28, 2007, pp. 2511-2515.

  7. W. Zhang, Y. Li, X.-G. Xia, P. C. Ching, and K. B. Letaief ``Distributed space-frequency coding in broadband ad hoc networks,'' in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2007), Honolulu, Hawaii, USA, Apr. 15-20, 2007, pp. 489-492.

  8. C. Sun, W. Zhang, and K. B. Letaief, ``Cooperative spectrum sensing for cognitive radios under bandwidth constraints,'' in Proc. IEEE International Wireless Communications and Networking Conference (WCNC 2007), Hong Kong, Mar. 11-15, 2007, pp. 1-5.

  9. K. Hamdi, W. Zhang, and K. B. Letaief, ``Uplink scheduling with QoS provisioning for cognitive radio systems,'' in Proc. IEEE International Wireless Communications and Networking Conference (WCNC 2007), Hong Kong, Mar. 11-15, 2007, pp. 2594-2598.

  10. W. Zhang, K. B. Letaief, X.-G. Xia, M. Wu, and W. Zhu, ``Advances in space-time/frequency coding for next generation broadband wireless communications,'' in Proc. IEEE Radio and Wireless Symposium (RWS 2007), Long Beach, CA, USA, Jan. 9-11, 2007, pp. 471-474.

2006

  1. Y. Li, W. Zhang, and X.-G. Xia, ``Distributive high-rate space-frequency codes achieving full cooperative and multipath diversity for asynchronous cooperative communications,'' in Proc. IEEE Global Communications Conference (GLOBECOM 2006), San Francisco, CA, USA, Nov. 27-Dec. 1, 2006. 

  2. Y. Li, W. Zhang, and X.-G. Xia, ``Distributive high-rate full-diversity space-frequency codes for asynchronous cooperative communications,'' in Proc. IEEE International Symposium on Information Theory (ISIT 2006), Seattle, Washington, USA, July 9-14, 2006, pp. 2612-2616. 

  3. W. Zhang, X.-G. Xia, and P. C. Ching, ``Design of orthogonal space-time block codes for MIMO-OFDM systems with full diversity and fast ML decoding,''  in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2006), Toulouse, France, May 14-19, 2006, vol. 4, pp. 169-172.

2005

  1. W. Zhang, X.-G. Xia, and P. C. Ching, ``High-rate full-diversity space-time-frequency codes for MIMO multipath block-fading channels,''  in Proc. IEEE Global Communications Conference (GLOBECOM 2005), St. Louis, MO, USA, Nov. 28-Dec. 2, 2005, vol. 3, pp. 1587-1591.  

  2. W. Zhang, X.-G. Xia, and P. C. Ching, ``Universal space-frequency block coding for MIMO-OFDM systems,'' in Proc. IEEE Asia-Pacific Conference on Communications (APCC 2005), Perth, Australia,  Oct. 3-5, 2005, pp. 227-231.

  3. W. Zhang, X.-G. Xia, and P. C. Ching, ``Achieving high-diversity in MB-OFDM systems,''  in Proc. IEEE Wireless Networks, Communications and Mobile Computing (WirelessCom 2005), Maui, Hawaii, USA, June 13-16, 2005, pp. 1343-1347.

  4. W. Zhang, X.-G. Xia, P. C. Ching, and H. Wang, ``Rate two full-diversity space-frequency code design for MIMO-OFDM,''  in  Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2005), New York, NY, USA, June 5-8, 2005, pp. 303-307. 

2004

  1. W. Zhang, X.-G. Xia, and P. C. Ching, ``A design of high-rate space-frequency codes for MIMO-OFDM systems,''  in Proc. IEEE Global Communications Conference (GLOBECOM 2004), Dallas, Texas, USA, Nov. 29 - Dec. 3, 2004, pp. 209-213.

  2. W. Zhang, X.-G. Xia, and P. C. Ching, ``Clustered pilot tones for carrier frequency offset compensation in OFDM systems,'' in Proc. 12th European Signal Processing Conference (EUSIPCO 2004), Vienna, Austria, Sep. 6-10, 2004, pp. 901-904.

  3. W. Zhang, X.-G. Xia, and P. C. Ching, ``On pilot pattern design for PSAM-OFDM system,''  in Proc. IEEE International Symposium on Circuits and Systems (ISCAS 2004), Vancouver, Canada, May 23-26, 2004, vol. V, pp. 417-420.

  4. W. Zhang, X.-G. Xia, P. C. Ching, and W.-K. Ma, ``On the number of pilots for OFDM system in multipath fading channels,'' in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2004), Montreal, Canada, May 17-21, 2004, vol. IV, pp. 381-384.

 

Ph. D. Thesis

Title: Issues on Broadband Wireless Communication Systems: Channel Estimation, Frequency Synchronization and Space-Time-Frequency Coding  

August 2005, Dept. of Electronic Engineering, The Chinese University of Hong Kong.

Supervisors: Prof. P. C. Ching and Prof. Xiang-Gen Xia

 

Patents

·        US patent number 7,965,641, issued on 21 June 2011. 
ROBUST COOPERATIVE SPECTRUM SENSING FOR COGNITIVE RADIOS
W. Zhang and K. B. Letaief
 

·         US patent number 8,792,500, issued on 29 July 2014.
MULTIUSER SCHEDULING FOR MIMO BROADCAST CHANNELS WITH FINITE RATE FEEDBACK
W. Zhang and K. B. Letaief
 

·         US patent number 8,521,094, issued on 27 August, 2013. 
POWER CONTROL IN COGNITIVE RADIO SYSTEMS BASED ON SPECTRUM SENSING SIDE INFORMATION
K. Hamdi, W. Zhang, and K. B. Letaief
 

·         US patent number 8,542,760, issued on 24 September, 2013. 
FULL-RATE DISTRIBUTED SPACE-TIME CODES FOR COOPERATIVE COMMUNICATIONS
W. Zhang and K. B. Letaief
 

·         US patent number 8,655,283, issued on 18 February, 2014.  
CLUSTER-BASED COOPERATIVE SPECTRUM SENSING IN COGNITIVE RADIO SYSTEMS
C. Sun, W. Zhang, and K. B. Letaief