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Division of Electrical and Computer Engineering

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Journal Papers

  1. X. Chen, X. Zhou, H. Zhang, M. Sun, and T. Zhao, "Joint device and training scheduling for wireless federated learning," IEEE Internet of Things J., to appear.
  2. R. Lei, X. Zhang, F. Shi, X. Zhou, Z. Zhou, and J. Liu, "Block iterative support detection for uplink grant-free MIMO-NOMA," IEEE Wireless Commun. Lett., vol. 14, no. 4, pp. 1264-1268, Apr. 2025.
  3. Y. Qian, T. Qiu, C. Ma, Y. Ni, L. Yuan, X. Zhou, and J. Li, "On traffic prediction with knowledge-driven spatial-temporal graph convolutional network aided by selected attention mechanism," IEEE Trans. Machine Learning in Commun. and Networking, vol. 3, pp. 369-380, Feb. 2025.
  4. X. Chen, X. Zhou, M. Sun, and H. Wang, "Temporal contrastive learning for sensor-based human activity recognition: a self-supervised approach," IEEE Sensors J., vol. 25, no. 1, pp. 1839-1850, Jan. 2025.
  5. Y. Qian, H. Cai, L. Shi, Z. Mei, Y. Shao, F. Shu, and X. Zhou, "A blockchain-assisted lightweight UAV network authentication mechanism via covert communication," Chinese J. Aeronautics, to appear.
  6. X. Chen, X. Zhou, H. Zhang, M. Sun, and H. V. Poor, "Client selection for wireless federated learning with data and latency heterogeneity," IEEE Internet of Things J., vol. 11, no. 19, pp. 32183-32196, Oct. 2024.
  7. G. Yang, Y. Qian, Z. Wang, X. Zhou, and W. Wu, "An intelligent impulsive noise mitigation with deep learning method," Int J. Mech. Syst. Dyn., vol. 4, no. 3, pp. 346-360, Sept. 2024.
  8. Y. Guo, J. Niu, X. Zhou, T. Gu, Y. Li, and D. Fang, "Power-efficient transmissions in LoRa uplink systems," IEEE Trans. Veh. Technol., vol. 73, no. 8, pp. 11224-11236, Aug. 2024.
  9. W. Zhang, X. Chen, X. Zhou, J. Chen, J. Yuan, T. Zhao, and K. Xu, "Deep learning-based geomorphic feature identification in dredge pit marine environment," J. Mar. Sci. Eng., vol. 12, no. 7, June 2024.
  10. Y. Wang, J. Niu, G. Chen, X. Zhou, Y. Li, and S. Liu, "RIS-aided latency-efficient MEC HetNet with wireless backhaul," IEEE Trans. Veh. Technol., vol. 73, no. 6, pp. 8705-8719, June 2024.
  11. J. Niu, Y. Wang, and X. Zhou, "Joint resource allocation and passive beamforming in RIS-aided HetNets with wireless backhaul," IEEE Trans. Wireless Commun., vol. 23, no. 6, pp. 6609-6622, June 2024.
  12. J. Niu, L. Zhang, Y. Wang, X. Zhou, and J. Chen, "Towards zero blind-zone backscatter communications: real-time system design, implementation, and experimental evaluation," IEEE Wireless Commun. Mag., vol. 31, no. 3, pp. 406-413, June 2024.
  13. Q. Sun, J. Niu, X. Zhou, T. Jin, and Y. Li, "AoI and data rate optimization in aerial IRS-assisted IoT networks," IEEE Internet of Things J., vol. 11, no. 4, pp. 6481-6493, Feb. 2024.
  14. L. Li, C. Huang, D. Shi, H. Wang, X. Zhou, M. Shu, and M. Pan, "Energy and spectrum efficient federated learning via high-precision over-the-air computation," IEEE Trans. Wireless Commun., vol. 23, no. 2, pp. 1228-1242, Feb. 2024.
  15. Y. Qian, C. Yang, Z. Mei, X. Zhou, L. Shi, and J. Li, "On joint optimization of trajectory and phase shift for IRS-UAV assisted covert communication systems," IEEE Trans. Veh. Technol., vol. 72, no. 10, pp. 12873-12883, Oct. 2023.
  16. G. Yang, Y. Qian, K. Ren, Z. Mei, F. Shu, X. Zhou, W. Wu, "Covert wireless communications for augmented reality systems with dual cooperative UAVs," IEEE J. Sel. Topics Signal Process., vol. 17, no. 5, pp. 1119-1130, Sept. 2023.
  17. Y. Qian, W. Li, Y. Lin, L. Shi, X. Zhou, J. Li, and F. Shu, "Antenna coding and rate optimization for covert wireless communications," IEEE Internet of Things J., vol. 10, no. 3, pp. 2459-2472, Feb. 2023.
  18. Y. Liu, X. Liu, X. Gao, X. Mu, X. Zhou, O. A. Dobre, and H. V. Poor, "Robotic communications for 5G and beyond: challenges and research opportunities," IEEE Commun. Mag., vol. 59, no. 10, pp. 92-98, Oct. 2021.
  19. M. Liu, X. Zhou, and M. Sun, "Bilateral privacy-utility tradeoff in spectrum sharing systems: a game-theoretic approach," IEEE Trans. Wireless Commun., vol. 20, no. 8, pp. 5144-5158, Aug. 2021.
  20. L. Sun, J. Yan, Y. Qian, F. Shu, and X. Zhou, "The opportunistic relaying scheme design and symbol error rate analysis for PLC networks in smart homes," SCIENCE CHINA Information Sciences, vol. 64, no. 8, Aug. 2021.
  21. F. Liu, J. Pan, X. Zhou, and G. Y. Li, "Atmospheric ducting effect in wireless communications: challenges and opportunities," J. Commun. and Information Networks, vol. 6, no. 2, pp. 101-109, June 2021.
  22. J. Liu, S. Xiao, H. Guo, X. Zhou, S. He, "Intelligent spectrum management and trajectory design for UAV-assisted cognitive ambient backscatter networks," Wireless Commun. and Mobile Computing, Apr. 2021.
  23. S. Guo, X. Zhou, and X. (S.) Zhou, "Energy-efficient resource allocation in SWIPT cooperative wireless Networks," IEEE Syst. J., vol. 14, no. 3, pp. 4131-4142, Sept. 2020.
  24. Y. Qian, L. Shi, J. Li, X. Zhou, F. Shu, and J. Wang, "An edge-computing paradigm for internet of things over power line communication networks," IEEE Network Mag., vol. 34, no. 2, pp. 262-269, Mar. 2020.
  25. Z. Qin, X. Zhou, L. Zhang, Y. Gao, Y.-C. Liang, and G. Y. Li, "20 years of intelligent communications: from cognition to AI," IEEE Trans. Cognitive Commun. and Networking, vol. 6, no. 5, pp. 6-20, Mar. 2020.
  26. D. Shi, J. Ding, S. M. Errapotu, H. Yue, W. Xu, X. Zhou, and M. Pan, "Deep Q-Network based route scheduling for TNC vehicles with passengers' location differential privacy," IEEE Internet of Things J., vol. 6, no. 5, pp. 7681-7692, Oct. 2019.
  27. F. Zhang, X. Zhou, and M. Sun, "On-demand receiver-centric channel allocation via constrained VCG auction for spatial spectrum reuse," IEEE Syst. J., vol. 13, no. 3, pp. 2519-2530, Sept. 2019.
  28. N. Wu, X. Zhou, and M. Sun, "Incentive mechanisms and impacts of negotiation power and information availability in multi-relay cooperative wireless networks," IEEE Trans. Wireless Commun., vol. 18, no. 7, pp. 3752-3765, July 2019.
  29. S. Guo, X. Zhou, S. Xiao, and M. Sun, "Fairness-aware energy-efficient resource allocation in D2D communication networks," IEEE Syst. J., vol. 13, no. 2, pp. 1273-1284, June 2019.
  30. J. Liu, G. Wu, S. Xiao, X. Zhou, G. Y. Li, S. Guo, and S. Li, "Joint power allocation and user scheduling for device-to-device-enable heterogeneous networks with non-orthogonal multiple access," IEEE Access, pp. 62657-62671, May 2019.
  31. S. Guo and X. Zhou, "Robust resource allocation with imperfect channel estimation in NOMA-based heterogeneous vehicular networks," IEEE Trans. Commun., vol. 67, no. 3, pp. 2321-2332, Mar. 2019.
  32. Y. Qian, X. Zhou, J. Li, F. Shu, and D. N. K. Jayakody, "A novel precoding and impulsive noise mitigation scheme for MIMO power line communication systems," IEEE Syst. J., vol. 13, no. 1, pp. 6-17, Mar. 2019.
  33. Y. Qian, J. Yan, H. Guan, J. Li, X. Zhou, S. Guo, and D. N. K. Jayakody, "Design of hybrid wireless and power line sensor networks with dual-interface relay in IoT," IEEE Internet of Things J., vol. 6, no. 1, pp. 239-249, Feb. 2019.
  34. F. Zhang, X. Zhou, and M. Sun, "Constrained VCG auction with multi-level channel valuations for spatial spectrum reuse in non-symmetric networks," IEEE Trans. Commun., vol. 67, no. 2, pp. 1182-1196, Feb. 2019.
  35. X. Zhou, M. Sun, G. Y. Li, and B. H. Juang, "Intelligent wireless communications enabled by cognitive radio and machine learning," IEEE/CIC China Commun., vol. 15, no. 12, pp. 16-48, Dec. 2018.
  36. F. Shu, W. Zhu, X. Zhou, J. Li, and J. Lu, "Robust secure transmission of using main-lobe-integration-based leakage beamforming in directional modulation MU-MIMO systems," IEEE Syst. J., vol. 12, no. 4, pp. 3775-3785, Dec. 2018.
  37. Y. Qian, X. Zhou, J. Li, F. Zhang, L. Shi, and F. Shu, "Design and performance analysis of power line communication networks under impulsive noise in smart home," IEEE Access, vol. 6, no. 1, pp. 71368-71377, Nov. 2018.
  38. N. Wu, X. Zhou, and M. Sun, "Secure transmission with guaranteed user satisfaction in heterogeneous networks: a two-level Stackelberg game approach," IEEE Trans. Commun., vol. 66, no. 6, pp. 2738-2750, June 2018.
  39. S. Xiao, X. Zhou, Y. Yuan-Wu, G. Y. Li, and W. Guo, "Robust resource allocation in full-duplex-enabled OFDMA femtocell networks," IEEE Trans. Wireless Commun., vol. 16, no. 10, pp. 6382-6394, Oct. 2017.
  40. J. Fan, S. Guo, X. Zhou, Y. Ren, G. Y. Li, and X. Chen, "Faster-than-Nyquist signaling: an overview," IEEE Access, vol. 5, pp. 1925-1940, Feb. 2017.
  41. F. Zhang, X. Zhou, and X. Cao, "Location-oriented evolutionary games for price-elastic spectrum sharing," IEEE Trans. Commun., vol. 64, no. 9, pp. 3958-3969, Sept. 2016.
  42. S. Xiao, X. Zhou, D. Feng, Y. Yuan-Wu, G. Y. Li, and W. Guo, "Energy-efficient mobile association in heterogeneous networks with device-to-device communications," IEEE Trans. Wireless Commun., vol. 15, no. 8, pp. 5260-5271, Aug. 2016.
  43. G. Zhao, X. Tong, L. Li, and X. Zhou, "Positioning third-party receiver by exploiting the close-loop power control in wireless networks," IEEE Wireless Commun. Lett., vol. 5, no. 3, pp. 268-271, June 2016.
  44. G. Zhao, B. Huang, L. Li, and X. Zhou, "Relay-assisted cross-channel gain estimation for spectrum sharing," IEEE Trans. Commun., vol. 64, no. 3, pp. 973-986, Mar. 2016.
  45. L. Li, G. Zhao, and X. Zhou, "Enhancing small cell transmission opportunity through passive receiver detection in two-tier heterogeneous networks," IEEE Trans. Signal Process., vol. 63, no. 13, pp. 3461-3473, July 2015.
  46. X. Cao, X. Zhou, L. Liu, and Y. Cheng, "Energy-efficient spectrum sensing for cognitive radio enabled remote state estimation over wireless channels," IEEE Trans. Wireless Commun., vol. 14, no. 4, pp. 2058-2071, Apr. 2015.
  47. X. Zhou, G. Y. Li, and G. Sun, "Multiuser spectral precoding for OFDM-based cognitive radio systems," IEEE J. Select. Areas Commun. (JSAC), vol. 31, no. 3, pp. 345-352, Mar. 2013.
  48. X. Zhou, G. Y. Li, and G. Sun, "Low-complexity spectrum shaping for OFDM-based cognitive radio systems," IEEE Signal Process. Lett., vol. 19, no. 10, pp. 667-670, Oct. 2012.
  49. L. Lu, X. Zhou, U. Onunkwo, and G. Y. Li, "Ten years of research in spectrum sensing and sharing in cognitive radio," EURASIP J. Wireless Commun. and Networking, Jan. 2012.
  50. L. Li, X. Zhou, H. Xu, G. Y. Li, D. Wang, and A. C. K. Soong, "Energy-efficient transmission for protection of incumbent users," IEEE Trans. Broadcast., vol. 57, no. 3, pp. 718-720, Sept. 2011.
  51. L. Li, X. Zhou, H. Xu, G. Y. Li, D. Wang, and A. C. K. Soong, "Simplified relay selection and power allocation in cooperative cognitive radio systems," IEEE Trans. Wireless Commun., vol. 10, no. 1, pp. 33-36, Jan. 2011.
  52. X. Zhou, G. Y. Li, D. Li, D. Wang, and A. C. K. Soong, "Probabilistic resource allocation for opportunistic spectrum access," IEEE Trans. Wireless Commun., vol. 9, no. 9, pp. 2870-2879, Sept. 2010.
  53. J. Ma, X. Zhou, and G. Y. Li, "Probability-based periodic spectrum sensing during secondary communication," IEEE Trans. Commun., vol. 58, no. 4, pp. 1291-1301, Apr. 2010.
  54. X. Zhou, J. Ma, G. Y. Li, Y. H. Kwon, and A. C. K. Soong, "Probability-based combination for cooperative spectrum sensing," IEEE Trans. Commun., vol. 58, no. 2, pp. 463-466, Feb. 2010.
  55. X. Zhou, J. Ma, G. Y. Li, Y. H. Kwon, and A. C. K. Soong, "Probability-based optimization of inter-sensing duration and power control in cognitive radio," IEEE Trans. Wireless Commun., vol. 8, no. 10, pp. 4922-4927, Oct. 2009.
  56. Z. Zhang, P. Cheng, X. Zhou, and P. Qiu, "System synchronization and channel estimation analysis for IEEE 802.16e OFDMA downlink system," Int. J. Commun. Syst., vol. 22, no. 4, pp. 375-398, Apr. 2009.

Book Chapters

  1. S. Guo and X. Zhou, "Precoding and power allocation for two-tier heterogeneous networks," in Handbook of Cognitive Radio, W. Zhang, Ed. Springer, 2017.
  2. X. Zhou, G. Y. Li, D. Li, D. Wang, and A. C. K. Soong, "Bandwidth-efficient cooperative spectrum sensing," in Cognitive Radio and its Application for Next Generation Cellular and Wireless Networks, H. Venkataraman and G.-M. Muntean, Eds. Springer, 2012.

Conference Papers

  1. X. Chen, X. Zhou, S. Zhang, and M. Sun, "DualGFL: federated learning with a dual-level coalition-auction game," in Proc. AAAI Conf. Artificial Intelligence, Feb. 2025.
  2. X. Chen, X. Zhou, H. Zhang, M. Sun, and T. Zhao, "Cost-effective federated learning: a unified approach to device and training scheduling," in Proc. IEEE Int. Conf. Commun. (ICC), June 2024.
  3. Z. Song, C. Ma, M. Ding, H. Yang, Y. Qian, and X. Zhou, "Personalized federated deep reinforcement learning-based trajectory optimization for multi-UAV assisted edge computing," in Proc. IEEE/CIC Int. Conf. Commun. China (ICCC), Aug. 2023.
  4. W. Li, J. Liao, Y. Qian, X. Zhou, and Y. Lin, "A wireless covert communication system: antenna coding and achievable rate analysis," in Proc. IEEE Int. Conf. Commun. (ICC), May 2022.
  5. M. Liu, X. Zhou, and M. Sun, "A game-theoretic approach to achieving bilateral privacy-utility tradeoff in spectrum sharing," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2020.
  6. G. Yang, Q. Liu, X. Zhou, Y. Qian, and W. Wu, "Two-tier resource allocation in dynamic network slicing paradigm with deep reinforcement learning," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2019.
  7. F. Zhang, X. Zhou, and M. Sun, "Multi-level channel valuations and coalitional subgames in spatial spectrum reuse," in Proc. IEEE Consumer Commun. Networking Conf. (CCNC), Jan. 2019.
  8. D. Shi, J. Ding, S. M. Errapotu, H Yue, W. Xu, X. Zhou, and M. Pan, "Deep Q-network based route scheduling for transportation network company vehicles," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2018.
  9. J. Liu, S. Guo, S. Xiao, M. Pan, X. Zhou, G. Y. Li, G. Wu, and S. Li, "Resource allocation for cooperative D2D-enabled wireless caching networks," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2018.
  10. N. Wu, X. Zhou, and M. Sun, "Incentive mechanisms and influence of negotiation power in multi-relay cooperative wireless networks," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2018.
  11. S. Guo, X. Zhou, S. Xiao, and M. Sun, "Low-complexity mode selection and resource allocation for energy-efficient D2D communications," in Proc. IEEE Veh. Technol. Conf. (VTC), Aug. 2018.
  12. Y. Qian, H. Xie, X. Zhou, and F. Zhang, "Achievable rate and ergodic capacity for power line communication systems under impulsive noise," in Proc. IEEE Int. Conf. Commun. (ICC) Workshops, May 2018.
  13. J. Liu, S. Xiao, X. Zhou, G. Y. Li, G. Wu, and S. Li, "Optimal mobile association and power allocation in device-to-device-enable heterogeneous networks with non-orthogonal multiple access protocol," in Proc. IEEE Int. Conf. Commun. (ICC), May 2018.
  14. N. Wu, X. Zhou, and M. Sun, "Multi-channel jamming attacks against cooperative defense: a two-level Stackelberg game approach," in Proc. IEEE Int. Conf. Commun. (ICC), May 2018.
  15. F. Zhang, X. Zhou, and M. Sun, "Constrained VCG auction for spatial spectrum reuse with flexible channel evaluations," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2017.
  16. N. Wu, X. Zhou, and M. Sun, "Secure transmission in heterogeneous networks: a two-level Stackelberg game approach," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2017.
  17. S. Guo and X. Zhou, "Robust power allocation for NOMA in heterogeneous vehicular communications with imperfect channel estimation," in Proc. IEEE Int. Symp. Personal, Indoor, and Mobile Radio Commun. (PIMRC), Oct. 2017.
  18. Y. Xie, B. Li, J. Fan, X. Zhou, G. Y. Li, and X. Li, "User grouping with load balance in FDD massive MIMO systems," in Proc. IEEE Veh. Technol. Conf. (VTC), Sept. 2017.
  19. S. Xiao, X. Zhou, Y. Yuan-Wu, G. Y. Li, and W. Guo, "Energy-efficient relay placement and power allocation for two-hop D2D relay networks," in Proc. IEEE Int. Conf. Commun. (ICC), May 2017.
  20. S. Xiao, X. Zhou, G. Y. Li, and W. Guo, "Robust resource allocation in full-duplex cognitive radio networks," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2016.
  21. S. Xiao, S. Guo, X. Zhou, D. Feng, Y. Yuan-Wu, G. Y. Li, and W. Guo, "Joint uplink and downlink resource allocation in full-duplex OFDMA networks," in Proc. IEEE Int. Conf. Commun. (ICC), May 2016.
  22. B. Huang, G. Zhao, L. Li, X. Zhou, and Z. Chen, "Non-cooperative cross-channel gain estimation using full-duplex amplify-and-forward relaying in cognitive radio networks," in Proc. IEEE Int. Conf. Acoust., Speech, and Signal Process. (ICASSP), Mar. 2016.
  23. S. Xiao, X. Zhou, D. Feng, Y. Yuan-Wu, G. Y. Li, and W. Guo, "Energy-efficient mobile association in device-to-device-enabled heterogeneous networks," in Proc. IEEE Int. Conf. Computing, Networking and Commun. (ICNC), Feb. 2016.
  24. S. Guo and X. Zhou, "Energy-efficient design in RF energy harvesting relay networks," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2015.
  25. F. Zhang and X. Zhou, "Location-oriented evolutionary games for spectrum sharing," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2014.
  26. X. Cao, X. Zhou, and Y. Cheng, ''Energy efficient spectrum sensing for state estimation over a wireless channel," in Proc. IEEE Global Conf. Signal and Inform. Process. (GlobalSIP), Dec. 2014.
  27. F. Zhang and X. Zhou, "Radio propagation prediction in restricted spaces," in Proc. IEEE Int. Conf. Wireless Commun. and Signal Processing (WCSP), Best Paper Award, Oct. 2014.
  28. S. Guo and X. Zhou, "A cascaded precoding scheme for two-tier heterogeneous networks," in Proc. IEEE Int. Conf. Wireless Commun. and Signal Processing (WCSP), Oct. 2014.
  29. X. Zhou, H. Al-Hraishawi, and Y. Jia, "Analysis and design of spectrum sharing in cognitive femtocell networks," in Proc. 51st Annu. Allerton Conf. Commun., Control, and Computing, Oct. 2013.
  30. F. Liu, X. Zhou, N. Himayat, S.-P. Yeh, S. Srikanteswara, S. Talwar, C. Feng, and G. Y. Li, "Exploiting statistical interference models for distributed resource allocation in cognitive femtocells," in Proc. IEEE Int. Conf. Commun. (ICC), June 2012.
  31. L. Lu, X. Zhou, and G. Y. Li, "Optimal sequential detection in cognitive radio networks," in Proc. IEEE Wireless Commun. and Networking Conf. (WCNC), Apr. 2012.
  32. X. Zhou, G. Y. Li, and G. Sun, "Multiuser spectral precoding for OFDM-based cognitive radios," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Dec. 2011.
  33. X. Zhou, G. Y. Li, and G. Sun, "Low-complexity spectrum shaping for OFDM-based cognitive radios," in Proc. IEEE Wireless Commun. and Networking Conf. (WCNC), Mar. 2011.
  34. X. Zhou, G. Y. Li, D. Li, D. Wang, and A. C. K. Soong, "Bandwidth efficient combination for cooperative spectrum sensing in cognitive radio networks," in Proc. IEEE Int. Conf. Acoust., Speech, and Signal Process. (ICASSP), Mar. 2010.
  35. L. Li, X. Zhou, H. Xu, G. Y. Li, D. Wang, and A. C. K. Soong, "Energy-efficient transmission in cognitive radio networks," in Proc. IEEE Consumer Commun. and Networking Conf. (CCNC), Jan. 2010.
  36. X. Zhou, G. Y. Li, D. Li, D. Wang, and A. C. K. Soong, "Probability-based resource allocation in cognitive radio networks," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Nov. 2009.
  37. X. Zhou, J. Ma, G. Y. Li, Y. H. Kwon, and A. C. K. Soong, "Probability-based combination for cooperative spectrum sensing in cognitive radio networks," in Proc. IEEE Int. Conf. Commun. (ICC), June 2009.
  38. X. Zhou, G. Y. Li, Y. H. Kwon, and A. C. K. Soong, "Detection timing and channel selection for periodic spectrum sensing in cognitive radio," in Proc. IEEE Global Commun. Conf. (GLOBECOM), Nov. 2008.
  39. X. Zhou, G. Y. Li, Y. H. Kwon, A. C. K. Soong, and G. Zhao, "Probability-based transmit power control for dynamic spectrum access," in Proc. IEEE Symp. New Frontiers Dynamic Spectrum Access Networks (DySPAN), Oct. 2008.
  40. P. Cheng, Z. Zhang, X. Zhou, J. Li, and P. Qiu, "A study on cell search algorithms for IEEE 802.16e OFDMA systems," in Proc. IEEE Wireless Commun. and Networking Conf. (WCNC), Mar. 2007.
  41. Y. Zhou, Z. Zhang, and X. Zhou, "OFDMA initial ranging for IEEE 802.16e based on time-domain and frequency-domain approaches," in Proc. IEEE Int. Conf. Commun. Technol. (ICCT), Nov. 2006.
  42. X. Zhou, Z. Zhang, and P. Cheng, "An interference avoidance scheme for OFDM cognitive radio systems," in Proc. IEEE Int. Conf. Commun. Technol. (ICCT), Nov. 2006.
  43. X. Zhou, Z. Zhang, and P. Cheng, "A practical cluster-based channel estimation method for IEEE 802.16e," in Proc. IEEE Int. Conf. Signal Process. (ICSP), Nov. 2006.