Books

1. Y. Liu, X. Mu, J. Xu, and J. Zhang, “Simultaneously Transmitting and Reflecting Surfaces for Wireless Communications”, Springer, 2025.

Book Chapters

1. X. Mu and Y. Liu, “Multiple Access Design for Joint Semantic and Classical Communications”. In: W. Saad, C. Chaccour, C. K. Thomas, and M. Debbah (Eds.), Foundations of Semantic Communication Networks, Wiley-IEEE Press, 2024.
2. X. Mu, Z. Wang, and Y. Liu, “Exploiting Non-orthogonal Multiple Access in Integrated Sensing and Communications”. In: Y. Liu, L. Liu, Z. Ding, and X. Shen (Eds.), Next Generation Multiple Access, Wiley-IEEE Press, 2024.
3. X. Mu, J. Xu, and Y. Liu, “Reconfigurable Intelligent Surfaces Toward 6G: From Reflection Only to Simultaneous Transmission and Reflection (STAR)”. In: X. Lin, J. Zhang, Y. Liu, and J. Kim (Eds.), Fundamentals of 6G Communications and Networking, Springer, 2024.

Journal Articles

• Pinching-Antenna Systems (PASS)

2025

1. X. Xu, X. Mu, Z. Wang, Y. Liu, and A. Nallanathan, “Pinching-Antenna Systems (PASS): Power Radiation Model and Optimal Beamforming Design”, IEEE Transactions on Communications; accepted to appear. [Arxiv] [Code]
2. Z. Wang, C. Ouyang, X. Mu, Y. Liu, and Z. Ding, “Modeling and Beamforming Optimization for Pinching-Antenna Systems”, IEEE Transactions on Communications; early access, doi: 10.1109/TCOMM.2025.3621049. [Arxiv]
3. Z. Zhang, Z. Wang, X. Mu, B. He, J. Chen, and Y. Liu, “Integrated Sensing and Communications for Pinching-Antenna Systems (PASS)”, IEEE Wireless Communications Letters; early access, doi: 10.1109/LCOMM.2025.3619778. [Arxiv]
4. G. Zhu, X. Mu, L. Guo, S. Xu, Y. Liu, and N. Al-Dhahir, “Pinching-Antenna Systems (PASS)-enabled Secure Wireless Communications”, IEEE Transactions on Communications; early access, doi: 10.1109/TCOMM.2025.3621084. [Arxiv]
5. Y. Liu, Z. Wang, X. Mu, C. Ouyang, X. Xu, and Z. Ding, “Pinching-Antenna Systems (PASS): Architecture Designs, Opportunities, and Outlook”, IEEE Communications Magazine; early access, doi: 10.1109/MCOM.001.2500037. [Arxiv]
6. L. Zhang, X. Mu, A. Liu, and Y. Liu, “Two-Timescale Joint Transmit and Pinching Beamforming for Pinching-Antenna Systems”, IEEE Wireless Communications Letters; vol. 14, no. 9, pp. 2897-2901, Sept. 2025. [Arxiv]

• Continuous Aperture Arrays (CAPA) and Holographic MIMO

2025

1. J. Zhao, H. Song, K. Cai, X. Mu, Y. Zhu, and Y. Liu, “Continuous Aperture Array (CAPA)-Based Secure Wireless Communications”, IEEE Transactions on Communications; early access, doi: 10.1109/TCOMM.2025.3604315. [Arxiv]
2. M. Qian, X. Mu, L. You, H. Shin, and M. Matthaiou, “Spectral Efficiency Analysis of Near-Field Holographic MIMO over Ricean Fading Channels”, IEEE Transactions on Communications; early access, doi: 10.1109/TCOMM.2025.3595728. [Arxiv]
3. Y. Liu, C. Ouyang, Z. Wang, J. Xu, X. Mu, and Z. Ding, “CAPA: Continuous-Aperture Arrays for Revolutionizing 6G Wireless Communications”, IEEE Wireless Communications; vol. 32, no. 4, pp. 38-45, August 2025. [Arxiv] (Popular article on IEEE WCM)

• Near-field Communications/Sensing (NFC/NISE)

2025

1. H. Li, Y. Zhang, X. Cao, H. Zheng, X. Mu, and T. Zhang, “Near-Field Beam Focusing for Extremely Large-Scale IRS-Aided Communication Systems”, IEEE Transactions on Wireless Communications; accepted to appear.
2. J. Zhao, S. Xue, K. Cai, X. Mu, Y. Liu, and Y. Zhu, “Near-Field Integrated Sensing and Communications for Secure UAV Networks”, IEEE Journal on Selected Areas in Communications; early access, doi: 10.1109/JSAC.2025.3608737.
3. Z. Wang, X. Mu, and Y. Liu, “Performance Analysis of Near-Field Sensing in Wideband MIMO Systems”, IEEE Transactions on Wireless Communications; early access, doi: 10.1109/TWC.2025.3564836.
4. J. Lei, X. Mu, T. Zhang, and Y. Liu, “RIS Assisted Near-Field NOMA Communications: A Security-Fairness Trade-off”, IEEE Transactions on Vehicular Technology; vol. 74, no. 7, pp. 11656-11661, July 2025.
5. Y. Liu, J. Xu, Z. Wang, X. Mu, and L. Hanzo, “Near-Field Communications: What Will Be Different?”, IEEE Wireless Communications; vol. 32, no. 2, pp. 262-270, April 2025. [Arxiv] (Popular article on IEEE WCM)
6. Y. Liu, C. Ouyang, Z. Wang, J. Xu, X. Mu, and A Lee Swindlehurst, “Near-Field Communications: A Comprehensive Survey”, IEEE Communications Surveys and Tutorials; vol. 27, no. 3, pp. 1687-1728, June 2025. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on NFC>} (Popular article on IEEE COMST)
7. Z. Wang, X. Mu, Y. Liu, “Near-Field Velocity Sensing and Predictive Beamforming”, IEEE Transactions on Vehicular Technology; vol. 74, no. 1, pp. 1806-1810, Jan. 2025. [Arxiv] (Popular article on IEEE TVT)
8. Z. Wang, X. Mu, Y. Liu, “Beamfocusing Optimization for Near-Field Wideband Multi-User Communications”, IEEE Transactions on Communications; vol. 73, no. 1, pp. 555-572, Jan. 2025. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on NFC>}

2024

1. C. Ouyang, Z. Wang, Y. Chen, X. Mu, and P. Zhu, “A Primer on Near-Field Communications for Next-Generation Multiple Access”, Proceedings of the IEEE; vol. 112, no. 9, pp. 1527-1565, Sept. 2024. [Arxiv] {Included in <IEEE Best Readings on NFC>}
2. H. Li, Z. Wang, X. Mu, Z. Pan, and Y. Liu, “Near-Field Integrated Sensing, Positioning, and Communication: A Downlink and Uplink Framework”, IEEE Journal on Selected Areas in Communications; vol. 42, no. 9, pp. 2196-2212, Sept. 2024. [Arxiv]
3. Z. Zhang, Y. Liu, Z. Wang, X. Mu, and J. Chen, “Simultaneous Wireless Information and Power Transfer in Near-Field Communications”, IEEE Internet of Things Journal; vol. 11, no. 16, pp. 27760-27774, Aug., 2024. [Arxiv]
4. Z. Wang, X. Mu, Y. Liu, and R. Schober, “TTD Configurations for Near-Field Beamforming: Parallel, Serial, or Hybrid?”, IEEE Transactions on Communications; vol. 72, no. 6, pp. 3783-3799, June 2024. [Arxiv] {Included in <IEEE Best Readings on NFC>}
5. Z. Wang, X. Mu, and Y. Liu, “Rethinking Integrated Sensing and Communication: When Near Field Meets Wideband”, IEEE Communications Magazine; vol. 62, no. 9, pp. 44-50, September 2024. [Arxiv] {Included in <IEEE Best Readings on NFC>}
6. Z. Zhang, Y. Liu, Z. Wang, X. Mu, and J. Chen, “Physical Layer Security in Near-Field Communications”, IEEE Transactions on Vehicular Technology; vol. 73, no. 7, pp. 10761-10766, July 2024. [Arxiv] {Included in <IEEE Best Readings on NFC>}
7. X. Mu, J. Xu, Y. Liu, and L. Hanzo, “Reconfigurable Intelligent Surface-Aided Near-Field Communications for 6G: Opportunities and Challenges”, IEEE Vehicular Technology Magazine; vol. 19, no. 1, pp. 65-74, March 2024. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on NFC>} (Popular article on IEEE VTM)

2023

1. Y. Liu, Z. Wang, J. Xu, C. Ouyang, X. Mu, and R. Schober, “Near-Field Communications: A Tutorial Review”, IEEE Open Journal of the Communications Society; vol. 4, pp. 1999-2049, 2023. (Invited Paper) [Arxiv] {Included in <IEEE Best Readings on NFC>} (Popular article on IEEE OJ-COMS)
2. Z. Wang, X. Mu, and Y. Liu, “Near-Field Integrated Sensing and Communications”, IEEE Communications Letters; vol. 27, no. 8, pp. 2048-2052, Aug. 2023. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on NFC>} (Popular article on IEEE CL)

• Simultaneously Transmitting and Reflecting Surfaces (STARS)

2025

1. N. Xue, X. Mu, Y. Chen, and Y. Liu, “STARS-assisted Near-field ISAC: Sensor Deployment and Beamforming Design”, IEEE Transactions on Wireless Communications; early access, doi: 10.1109/TWC.2025.3616074. [Arxiv]
2. J. Zhao, Q. Xu, K. Cai, Y. Zhu, X. Mu, and Y. Liu, “Movable-Element STARS-Aided Secure Communications”, IEEE Transactions on Vehicular Technology; early access, doi: 10.1109/TVT.2025.3615115. [Arxiv]
3. G. Zhu, X. Mu, L. Guo, A. Huang, and S. Xu, “STAR-RIS Assisted SWIPT Systems: Active or Passive?”, IEEE Transactions on Wireless Communications; early access, doi: 10.1109/TWC.2025.3611793. [Arxiv]
4. H. Chen, L. Xiao, Y. Xu, D. Yang, X. Mu, and T. Zhang, “STAR-RIS Assisted Hybrid Far- and Near-Field SWIPT”, IEEE Transactions on Vehicular Technology; early access, doi: 10.1109/TVT.2025.3603715.
5. A. Huang, X. Mu, L. Guo, and G. Zhu, “SE and EE Tradeoff in Active STAR-RIS Assisted Systems With Hardware Impairments”, IEEE Transactions on Vehicular Technology; early access, doi: 10.1109/TVT.2025.3607948. [Arxiv]
6. X. Yue, X. Guo, X. Mu, J. Zhao, P. Yang, J. Mu, and Z. Lu, “Federated Learning in Active STARS-Aided Uplink Networks”, IEEE Transactions on Vehicular Technology; early access, doi: 10.1109/TVT.2025.3590980.
7. G. Zhu, X. Mu, L. Guo, A. Huang, and S. Xu, “Movable-Element STARS-Assisted Near-Field Wideband Communications”, IEEE Internet of Things Journal; vol. 12, no. 16, pp. 33130-33143, 15 Aug.15, 2025. [Arxiv]
8. L. Guo, J. Jia, X. Mu, Y. Liu, J. Chen, and X. Wang, “Joint Secure and Covert Communications for Active STAR-RIS Assisted ISAC Systems”, IEEE Transactions on Wireless Communications; vol. 24, no. 9, pp. 7501-7516, Sept. 2025.
9. H. Li, X. Mu, Y. Liu, Y. Chen, and Z. Pan, “On the Sum Rate and User Fairness of STAR-RIS Aided Communications”, IEEE Wireless Communications Letters; vol. 14, no. 5, pp. 1306-1310, May 2025. [Arxiv]
10. J. Zhao, Q. Xu, X. Mu, Y. Liu, and Y. Zhu, “Aerial Active STAR-RIS-Aided IoT NOMA Networks”, IEEE Internet of Things Journal; vol. 12, no. 8, pp. 9525-9538, 15 April, 2025. [Arxiv]
11. G. Zhu, X. Mu, L. Guo, A. Huang, and S. Xu, “Enhancing User Fairness in Wireless Powered Communication Networks with STAR-RIS”, IEEE Internet of Things Journal; vol. 12, no. 3, pp. 2659-2673, 1 Feb.1, 2025. [Arxiv]
12. X. Mu, Z. Wang, and Y. Liu, “Simultaneously Transmitting And Reflecting Surfaces (STARS) for Multi-Functional 6G”, IEEE Network; vol. 39, no. 1, pp. 47-55, Jan. 2025. [Arxiv]

2024

1. H. Li, Y. Liu, X. Mu, Y. Chen, Z. Pan, and X. You, “STAR-RIS in Cognitive Radio Networks”, IEEE Transactions on Wireless Communications; vol. 23, no. 12, pp. 19649-19666, Dec. 2024. [Arxiv]
2. H. Li, X. Mu, Y. Liu, Y. Chen, and Z. Pan, “STAR-RIS Aided Integrated Sensing, Computing, and Communication for Internet of Robotic Things”, IEEE Internet of Things Journal; vol. 11, no. 20, pp. 32514-32526, 15 Oct.15, 2024.
3. X. Mu, J. Xu, Z. Wang, and N. Al-Dhahir, “Simultaneously Transmitting and Reflecting Surfaces for Ubiquitous Next Generation Multiple Access in 6G and Beyond”, Proceedings of the IEEE; vol. 112, no. 9, pp. 1346-1371, Sept. 2024. [Arxiv]
4. N. Xue, X. Mu, Y. Liu, and Y. Chen, “NOMA-Assisted Full Space STAR-RIS-ISAC”, IEEE Transactions on Wireless Communications; vol. 23, no. 8, pp. 8954-8968, Aug. 2024.
5. J. Lei, T. Zhang, X. Mu, and Y. Liu, “NOMA for STAR-RIS Assisted UAV Networks”, IEEE Transactions on Communications; vol. 72, no. 3, pp. 1732-1745, March 2024. [Arxiv]
6. G. Zhu, X. Mu, L. Guo, A. Huang, and S. Xu, “Robust Resource Allocation for STAR-RIS Assisted SWIPT Systems”, IEEE Transactions on Wireless Communications; vol. 23, no. 6, pp. 5616-5631, June 2024. [Arxiv]
7. N. Zhang, Y. Liu, X. Mu, W. Wang, and A. Huang, “Queue-Aware STAR-RIS Assisted NOMA Communication Systems”, IEEE Transactions on Wireless Communications; vol. 23, no. 5, pp. 4786-4801, May 2024. [Arxiv]
8. Y. Liu, J. Xu, Z. Wang, X. Mu, J. Zhang, and P. Zhang, “Simultaneously Transmitting And Reflecting (STAR) RIS for 6G: Fundamentals, Recent Advances, and Future Directions”, Frontiers of Information Technology & Electronic Engineering; vol. 24, no. 12, pp. 1689-1707, Jan 2024. [Arxiv]
9. J. Xu, X. Mu, and Y. Liu, “Exploiting STAR-RISs in Near-Field Communications”, IEEE Transactions on Wireless Communications; vol. 23, no. 3, pp. 2181-2196, March 2024. [Arxiv] {Included in <IEEE Best Readings on NFC>}

2023

1. A. Huang, X. Mu, and L. Guo, “STAR-RIS Assisted Downlink Active and Uplink Backscatter Communications with NOMA”, IEEE Transactions on Vehicular Technology; vol. 72, no. 11, pp. 14516-14530, Nov. 2023. [Arxiv]
2. Z. Wang, X. Mu, J. Xu, and Y. Liu, “Simultaneously Transmitting and Reflecting Surface (STARS) for Terahertz Communications”, IEEE Journal of Selected Topics in Signal Processing; vol. 17, no. 4, pp. 861-877, July 2023. [Arxiv]
3. Q. Gao, Y. Liu, X. Mu, M. Jia, D. Li, and L. Hanzo, “Joint Location and Beamforming Design for STAR-RIS Assisted NOMA Systems”, IEEE Transactions on Communications; vol. 71, no. 4, pp. 2532-2546, April 2023. [Arxiv]
4. Z. Wang, X. Mu, and Y. Liu, “STARS Enabled Integrated Sensing and Communications”, IEEE Transactions on Wireless Communications; vol. 22, no. 10, pp. 6750-6765, Oct. 2023. [Arxiv] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE TWC)
5. R. Zhong, X. Mu, Y. Liu, Y. Chen, J. Zhang, and P. Zhang, “STAR-RISs Assisted NOMA Networks: A Distributed Learning Approach”, IEEE Journal of Selected Topics in Signal Processing; vol. 17, no. 1, pp. 264-278, Jan. 2023.
6. Z. Wang, X. Mu, Y. Liu, and R. Schober, “Coupled Phase-Shift STAR-RISs: A General Optimization Framework”, IEEE Wireless Communications Letters; vol. 12, no. 2, pp. 207-211, Feb. 2023. [Arxiv] [Code]
7. J. Xu, X. Mu, T. Zhou, and Y. Liu, “Simultaneously Transmitting and Reflecting (STAR)-RISs: Are They Applicable to Dual-Sided Incidence?”, IEEE Wireless Communications Letters; vol. 12, no. 1, pp. 129-133, Jan. 2023. [Arxiv]

2022

1. J. Zhao, Y. Zhu, X. Mu, K. Cai, Y. Liu and L. Hanzo, “Simultaneously Transmitting And Reflecting Reconfigurable Intelligent Surface (STAR-RIS) Assisted UAV Communications”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 10, pp. 3041-3056, Oct. 2022.
2. R. Zhong, Y. Liu, X. Mu, Y. Chen, X. Wang and L. Hanzo, “Hybrid Reinforcement Learning for STAR-RISs: A Coupled Phase-Shift Model Based Beamformer”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 9, pp. 2556-2569, Sept. 2022. [Arxiv]
3. J. Xu, Y. Liu, X. Mu, R. Schober, and H. V. Poor, “STAR-RISs: A Correlated T&R Phase-Shift Model and Practical Phase-Shift Configuration Strategies”, IEEE Journal of Selected Topics in Signal Processing; vol. 16, no. 5, pp. 1097-1111, Aug. 2022.
4. J. Xu, Y. Liu, X. Mu, T. Zhou, L. Song, H. V. Poor, and L. Hanzo, “Simultaneously Transmitting and Reflecting Intelligent Omni-Surfaces: Modeling and Implementation”, IEEE Vehicular Technology Magazine; vol. 17, no. 2, pp. 46-54, June 2022. [Arxiv]
5. C. Wu, X. Mu, Y. Liu, X. Gu and X. Wang, “Resource Allocation in STAR-RIS-Aided Networks: OMA and NOMA”, IEEE Transactions on Wireless Communications; vol. 21, no. 9, pp. 7653-7667, Sept. 2022. [Arxiv] [ESI Highly Cited Paper (Top 1%)]
6. X. Mu, Y. Liu, L. Guo, J. Lin, and R. Schober, “Simultaneously Transmitting And Reflecting (STAR) RIS Aided Wireless Communications”, IEEE Transactions on Wireless Communications; vol. 21, no. 5, pp. 3083-3098, May 2022. [Arxiv] [Code] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE TWC)

2021

1. C. Wu, Y. Liu, X. Mu, X. Gu and O. A. Dobre, “Coverage Characterization of STAR-RIS Networks: NOMA and OMA”, IEEE Communications Letters; vol. 25, no. 9, pp. 3036-3040, Sept. 2021. [Arxiv] [ESI Highly Cited Paper (Top 1%)]
2. Y. Liu, X. Mu, J. Xu, R. Schober, Y. Hao, H. V. Poor, and L. Hanzo, “STAR: Simultaneous Transmission And Reflection for 360 Coverage by Intelligent Surfaces”, IEEE Wireless Communications; vol. 28, no. 6, pp. 102-109, December 2021. [Arxiv] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE WCM)
3. J. Xu, Y. Liu, X. Mu, and O. A. Dobre, “STAR-RISs: Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surfaces”, IEEE Communications Letters; vol. 25, no. 9, pp. 3134-3138, Sept. 2021. [Arxiv] [2024 IEEE Communications Society Heinrich Hertz Award for Best Communications Letter] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE CL)

• Reconfigurable Intelligent Surface (RIS) / Intelligent Reflecting Surface (IRS)

2025

1. J. Li, L. Yang, Q. Wu, X. Lei, F. Zhou, F. Shu, X. Mu, Y. Liu, and P. Fan, “Active RIS-Aided NOMA-Enabled Space-Air-Ground Integrated Networks with Cognitive Radio”, IEEE Journal on Selected Areas in Communications; vol. 43, no. 1, pp. 314-333, Jan. 2025. [ESI Highly Cited Paper (Top 1%)]
2. J. Jia, K. Yu, X. Mu, Y. Liu, J. Chen, and X. Wang, “Delay-Aware Resource Allocation for RIS assisted Semi-Grant-Free NOMA Systems”, IEEE Transactions on Communications; vol. 73, no. 3, pp. 2016-2031, March 2025.

2024

1. A. Huang, X. Mu, L. Guo, and G. Zhu, “Hybrid Active-Passive RIS Transmitter Enabled Energy-Efficient Multi-User Communications”, IEEE Transactions on Wireless Communications; vol. 23, no. 9, pp. 10653-10666, Sept. 2024. [Arxiv]

2023

1. X. Gao, X. Mu, W. Yi, and Y. Liu, “Intelligent Trajectory Design for RIS-NOMA aided Multi-robot Communications”, IEEE Transactions on Wireless Communications; vol. 22, no. 11, pp. 7648-7662, Nov. 2023. [Arxiv]
2. Y. Zou, Y. Liu, X. Mu, X. Zhang, Y. Liu, and C. Yuen, “Machine Learning in RIS-assisted NOMA IoT Networks”, IEEE Internet of Things Journal; vol. 10, no. 22, pp. 19427-19440, Nov. 2023.
3. A. Huang, L. Guo, X. Mu, C. Dong, and Y. Liu, “Coexisting Passive RIS and Active Relay Assisted NOMA Systems”, IEEE Transactions on Wireless Communications; vol. 22, no. 3, pp. 1948-1963, March 2023. [Arxiv]

2022

1. Y. Liu, X. Mu, X. Liu, M. Di Renzo, Z. Ding, and R. Schober, “Reconfigurable Intelligent Surface (RIS) Aided Multi-User Networks: Interplay Between NOMA and RIS”, IEEE Wireless Communications; vol. 29, no. 2, pp. 169-176, April 2022. [Arxiv]
2. J. Chen, Y. Xie, X. Mu, J. Jia, Y. Liu and X. Wang, “Energy Efficient Resource Allocation for IRS Assisted CoMP Systems”, IEEE Transactions on Wireless Communications; vol. 21, no. 7, pp. 5688-5702, July 2022.
3. X. Xu, Q. Chen, X. Mu, Y. Liu, and H. Jiang, “Graph-Embedded Multi-Agent Learning for Smart Reconfigurable THz MIMO-NOMA Networks”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 1, pp. 259-275, Jan. 2022. [Arxiv]
4. R. Zhong, Y. Liu, X. Mu, Y. Chen, and L. Song, “AI Empowered RIS-Assisted NOMA Networks: Deep Learning or Reinforcement Learning?”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 1, pp. 182-196, Jan. 2022.

2021

1. X. Mu, Y. Liu, L. Guo, J. Lin and R. Schober, “Joint Deployment and Multiple Access Design for Intelligent Reflecting Surface Assisted Networks”, IEEE Transactions on Wireless Communications; vol. 20, no. 10, pp. 6648-6664, Oct. 2021. [Arxiv] {Included in <IEEE Best Readings on RIS>}
2. X. Mu, Y. Liu, L. Guo, J. Lin and H. V. Poor, “Intelligent Reflecting Surface Enhanced Multi-UAV NOMA Networks”, IEEE Journal on Selected Areas in Communications; vol. 39, no. 10, pp. 3051-3066, Oct. 2021. [Arxiv]
3. Y. Liu, X. Liu, X. Mu, T. Hou, J. Xu, M. Di Renzo, and N. Al-Dhahir, “Reconfigurable Intelligent Surfaces: Principles and Opportunities”, IEEE Communications Surveys and Tutorials; vol. 23, no. 3, pp. 1546-1577, thirdquarter 2021. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on RIS>} (Popular article on IEEE COMST)
4. X. Mu, Y. Liu, L. Guo, J. Lin and R. Schober, “Intelligent Reflecting Surface Enhanced Indoor Robot Path Planning: A Radio Map based Approach”, IEEE Transactions on Wireless Communications; vol. 20, no. 7, pp. 4732-4747, July 2021. [Arxiv]
5. X. Mu, Y. Liu, L. Guo, J. Lin, and N. Al-Dhahir, “Capacity and Optimal Resource Allocation for IRS-assisted Multi-user Communication Systems”, IEEE Transactions on Communications; vol. 69, no. 6, pp. 3771-3786, June 2021. [Arxiv] {Included in <IEEE Best Readings on RIS>}

2020

1. X. Mu, Y. Liu, L. Guo, J. Lin, and N. Al-Dhahir, “Exploiting Intelligent Reflecting Surfaces in NOMA Networks: Joint Beamforming Optimization”, IEEE Transactions on Wireless Communications; vol. 19, no. 10, pp. 6884-6898, Oct. 2020. [Arxiv] [ESI Highly Cited Paper (Top 1%)] {Included in <IEEE Best Readings on RIS>}

• Mobile Edge Generation (MEG) or Generative AI

2025

1. X. Xu, X. Mu, Y. Liu, Y. Kim, and A. Nallanathan, “Large Model at Edge: An Optimal Mobile Edge Generation (MEG) Design”, IEEE Transactions on Wireless Communications; early access, doi: 10.1109/TWC.2025.3617845.
2. M. Zhang, R. Zhong, X. Mu, Y. Liu, and M. Peng, “Energy Consumption Minimization for Mobile Edge Generation”, IEEE Transactions on Wireless Communications; vol. 24, no. 9, pp. 7702-7718, Sept. 2025.
3. X. Xu, Y. Liu, X. Mu, H. Xing, and A. Nallanathan, “Accelerating Mobile Edge Generation (MEG) by Constrained Learning”, IEEE Transactions on Cognitive Communications and Networking; vol. 11, no. 3, pp. 1854-1869, June 2025. [Arxiv]
4. R. Zhong, X. Mu, M. Jaber, and Y. Liu, “Enabling Distributed Generative Artificial Intelligence in 6G: Mobile Edge Generation”, IEEE Internet of Things Journal; vol. 12, no. 6, pp. 6607-6620, March 2025.

2024

1. X. Xu, R. Zhong, X. Mu, Y. Liu, and K. Huang, “Mobile Edge Generation-Enabled Digital Twin: Architecture Design and Research Opportunities”, IEEE Communications Magazine; vol. 63, no. 4, pp. 32-39, April 2025.
2. X. Xu, X. Mu, Y. Liu, X. Hong, Y. Liu, and A. Nallanathan, “Generative Artificial Intelligence (GAI) for Mobile Communications: A Diffusion Model Perspective”, IEEE Communications Magazine; vol. 63, no. 7, pp. 98-105, July 2025.
3. R. Zhong, X. Mu, Y. Zhang, M. Jaber, and Y. Liu, “Mobile Edge Generation: A New Era to 6G”, IEEE Network; vol. 38, no. 5, pp. 47-55, Sept. 2024. [Arxiv]

• Integrated Sensing and Communications (ISAC)

2025

1. Q. Gao, R. Zhong, X. Mu, M. Peng, H. Shin, and Y. Liu, “Distributed Antenna Selection and Beamforming for ELAA based Downlink ISAC Systems”, IEEE Transactions on Vehicular Technology; early access, doi: 10.1109/TVT.2025.3574448.

2024

1. Z. Wang, X. Mu, and Y. Liu, “Bidirectional Integrated Sensing and Communication: Full-Duplex or Half-Duplex?”, IEEE Transactions on Wireless Communications; vol. 23, no. 8, pp. 8184-8199, Aug. 2024. [Arxiv]
2. X. Mu, Z. Wang, and Y. Liu, “NOMA for Integrating Sensing and Communications towards 6G: A Multiple Access Perspective”, IEEE Wireless Communications; vol. 31, no. 3, pp. 316-323, June 2024. [Arxiv] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE WCM)

2023

1. Z. Wang, X. Mu, Y. Liu, X. Xu, and P. Zhang, “NOMA-aided Joint Communication, Sensing, and Multi-tier Computing Systems”, IEEE Journal on Selected Areas in Communications; vol. 41, no. 3, pp. 574-588, March 2023. [Arxiv]

2022

1. X. Mu, Y. Liu, L. Guo, J. Lin, and L. Hanzo, “NOMA-Aided Joint Radar and Multicast-Unicast Communication Systems”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 6, pp. 1978-1992, June 2022. [Arxiv]
2. Z. Wang, Y. Liu, X. Mu, Z. Ding and O. A. Dobre, “NOMA Empowered Integrated Sensing and Communication”, IEEE Communications Letters; vol. 26, no. 3, pp. 677-681, March 2022. [Arxiv] [Code] [ESI Highly Cited Paper (Top 1%)] (Popular article on IEEE CL)

• Non-Orthogonal Multiple Access (NOMA) / Next Generation Multiple Access (NGMA)

2025

1. L. Zhang, A. Liu, X. Xu, X. Mu, and Y. Liu, “Two-Stage Reinforcement Learning for MIMO-NOMA with Hard-latency Constraints”, IEEE Transactions on Communications; early access, doi: 10.1109/TCOMM.2025.3576919.
2. N. Xue, X. Mu, Y. Liu, X. Zhang, and Y. Chen, “Hybrid NOMA Empowered Energy-Efficient ISAC”, IEEE Transactions on Wireless Communications; vol. 24, no. 5, pp. 3894-3908, May 2025.

2024

1. M. Zhang, R. Zhong, X. Mu, and Y. Liu, “Machine Learning enabled Heterogeneous Semantic and Bit Communication”, IEEE Transactions on Wireless Communications; vol. 23, no. 10, pp. 12949-12963, Oct. 2024.
2. J. Wang, Y. Liu, X. Mu, X. Ma, W. Liu, and W. Xie, “Joint Subchannel and Power Allocation in NOMA-Based Spatial Modulation Systems”, IEEE Transactions on Wireless Communications; vol. 23, no. 9, pp. 12020-12037, Sept. 2024.

2023

1. X. Mu and Y. Liu, “Exploiting Semantic Communication for Non-Orthogonal Multiple Access”, IEEE Journal on Selected Areas in Communications; vol. 41, no. 8, pp. 2563-2576, Aug. 2023. [Arxiv]
2. X. Xu, Y. Liu, X. Mu, Q. Chen, and Z. Ding, “Cluster-Free NOMA Communications Towards Next Generation Multiple Access”, IEEE Transactions on Communications; vol. 71, no. 4, pp. 2184-2200, April 2023. [Arxiv]
3. X. Xu, Y. Liu, Q. Chen, X. Mu, and Z. Ding, “Distributed Auto-Learning GNN for Multi-Cell Cluster-Free NOMA Communications”, IEEE Journal on Selected Areas in Communications; vol. 41, no. 4, pp. 1243-1258, April 2023. [Arxiv]
4. X. Xu, Y. Liu, X. Mu, Q. Chen, H. Jiang, and Z. Ding, “Artificial Intelligence Enabled NOMA Towards Next Generation Multiple Access”, IEEE Wireless Communications; vol. 30, no. 1, pp. 86-94, February 2023. [Arxiv]
5. X. Mu, Y. Liu, L. Guo, and N. Al-Dhahir, “Heterogeneous Semantic and Bit Communications: A Semi-NOMA Scheme”, IEEE Journal on Selected Areas in Communications; vol. 41, no. 1, pp. 155-169, Jan. 2023. [Arxiv]

2022

1. Y. Liu, S. Zhang, X. Mu, Z. Ding, R. Schober, N. Al-Dhahir, E. Hossain, and X. Shen, “Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G”, IEEE Journal on Selected Areas in Communications; vol. 40, no. 4, pp. 1037-1071, April 2022. [Arxiv] [ESI Highly Cited Paper (Top 1%)]

2021

1. X. Mu, Y. Liu, L. Guo, J. Lin and Z. Ding, “Energy-Constrained UAV Data Collection Systems: NOMA and OMA”, IEEE Transactions on Vehicular Technology; vol. 70, no. 7, pp. 6898-6912, July 2021. [Arxiv]

2020

1. X. Mu, Y. Liu, L. Guo and J. Lin, “Non-Orthogonal Multiple Access for Air-to-Ground Communication”, IEEE Transactions on Communications; vol. 68, no. 5, pp. 2934-2949, May 2020. [Arxiv]

• Other Research Topics

1. Y. Zheng, T. Zhang, X. Mu, Y. Liu, and R. Huang, “Joint Semantic Transmission and Resource Allocation for Intelligent Computation Task Offloading in MEC Systems”, IEEE Transactions on Wireless Communications; vol. 24, no. 10, pp. 8756-8770, Oct. 2025. [Arxiv]
2. W. Xu, T. Zhang, X. Mu, Y. Liu, and Y. Wang, “Trajectory Planning and Resource Allocation for Multi-UAV Cooperative Computation”, IEEE Transactions on Communications; vol. 72, no. 7, pp. 4305-4318, July 2024.
3. Y. Liu, X. Liu, X. Gao, X. Mu, X. Zhou, O. Dobre, and H.V. Poor, “Robotic Communications for 5G and Beyond: Challenges and Research Opportunities”, IEEE Communications Magazine; vol. 59, no. 10, pp. 92-98, October 2021. [Arxiv]