Reconfigurable Intelligence Surface

Overview

  • B. Yang, X. Cao, J. Xu, C. Huang, G. C. Alexandropoulos, L. Dai, M. Debbah, H. V. Poor, C. Yuen, Reconfigurable Intelligent Computational Surfaces: When Wave Propagation Control Meets Computing, IEEE Wireless Communications, March 2023. [PDF]
  • A. Rafique, N. Ul Hassan, M. Zubair, I. H. Naqvi, M. Q. Mehmood, M. Di Renzo, M. Debbah, C. Yuen, Reconfigurable Intelligent Surfaces: Interplay of Unit Cell and Surface-Level Design and Performance under Quantifiable Benchmarks, IEEE Open Journal of the Communications Society, vol. 4, July 2023, pp. 1583-1599.
  • G. C. Alexandropoulos, K. Stylianopoulos, C. Huang, C. Yuen, M. Bennis, M. Debbah, Pervasive Machine Learning for Smart Radio Environments Enabled by Reconfigurable Intelligent Surfaces, IEEE Proceedings, vol. 110, Sept 2022, pp. 1494-1525. [PDF]
  • M. Jian, G. C. Alexandropoulos, E. Basar, C. Huang, R. Liu, Y. Liu, and C. Yuen, Reconfigurable Intelligent Surfaces for Wireless Communications: Overview of Hardware Designs, Channel Models, and Estimation Techniques, Intelligent and Converged Networks, March 2022. (Invited Paper)
  • M. D. Renzo, A. Zappone, M. Debbah, M.-S. Alouini, C. Yuen, J. d. Rosny, and S. Tretyakov, Smart Radio Environments Empowered by Reconfigurable Intelligent Surfaces: How it Works, State of Research, and Road Ahead, IEEE JSAC, vol. 38, Nov 2020, pp. 2450-2525. [PDF]
  • C. Huang, A. Zappone, G. C. Alexandropoulos, M. Debbah, C. Yuen, Reconfigurable Intelligent Surfaces for Energy Efficiency in Wireless Communication, IEEE TWC, Aug 2019, pp. 4157-4170. [PDF] IEEE Marconi Prize Paper Award in Wireless Communications 2021
  • M. D. Renzo, M. Debbah, D.-T. Phan-Huy, A. Zappone, M.-S. Alouini, C. Yuen, V. Sciancalepore, G. C. Alexandropoulos, J. Hoydis, H. Gacanin, J. d. Rosny, A. Bounceu, G. Lerosey, and M. Fink, Smart Radio Environments Empowered by AI Reconfigurable Meta-Surfaces: An Idea Whose Time Has Come, EURASIP Journal on Wireless Communications and Networking, May 2019, 219. [PDF] EURASIP Best Paper Award 2021

Channel Estimation

  • S. Yang, W. Lyu, Y. Xiu, Z. Zhang, C. Assi, C. Yuen, Reconfigurable Intelligent Surface-Aided Full-Duplex mmWave MIMO: Channel Estimation, Passive and Hybrid Beamforming, IEEE TWC, July 2023
  • X. Jia, J. An, H. Liu, H. Liao, L. Gan, C. Yuen, Environment-Aware Codebook for Reconfigurable Intelligent Surface-Aided MISO Communications, IEEE WCL, vol. 12, July 2023, pp. 1174-1178. [PDF]
  • S. Yang, W. Lyu, Y. Xiu, Z. Zhang, and C. Yuen, Active 3D Double-RIS-Aided Multi-User Communications: Two-Timescale-Based Separate Channel Estimation via Bayesian Learning, IEEE TCOM, vol. 71, June 2023, pp. 3605-3620. [PDF]
  • M. Liu, X. Li, B. Ning, C. Huang, S. Sun, C. Yuen, Deep Learning-Based Channel Estimation for Double-RIS Aided Massive MIMO System, IEEE WCL, vol. 12, Jan 2023, pp. 70-74. [PDF]
  • J. An, C. Xu, Q. Wu, D. W. K. Ng, M. D. Renzo, C. Yuen, and L. Hanzo, Codebook-Based Solutions for Reconfigurable Intelligent Surfaces and Their Open Challenges, IEEE Wireless Communications, Nov 2022. [PDF]
  • Y. Guo, P. Sun, Z. Yuan, C. Huang, Q. Guo, Z. Wang, C. Yuen, Efficient Channel Estimation for RIS-Aided MIMO Communications with Unitary Approximate Message Passing, IEEE TWC, vol. 22, Feb 2023, pp. 1403-1416.
  • L. Wei, C. Huang, Q. Guo, Z. Yang, Z. Zhang, G. C. Alexandropoulos, M. Debbah, C. Yuen, Joint Channel Estimation and Signal Recovery for RIS-Empowered Multi-User Communications, IEEE TCOM, vol. 70, July 2022, pp. 4640-4655. [PDF]
  • W. Xu, J. An, Y. Xu, C. Huang, L. Gan, C. Yuen, Time-Varying Channel Prediction for RIS-Assisted MU-MISO Networks via Deep Learning, IEEE TCCN, vol. 8, Dec 2022, pp. 1802-1815.
  • J. An, Q. Wu, C. Yuen, Scalable Channel Estimation and Reflection Optimization for Reconfigurable Intelligent Surface-Enhanced OFDM Systems, IEEE WCL, vol. 11, Apr 2022, pp. 796-800.
  • S. Abeywickrama, C. You, R. Zhang, C. Yuen, Channel Estimation for Intelligent Reflecting Surface Assisted Backscatter Communication, IEEE Wireless Communications Letters, vol. 10, Nov 2021, pp. 2519-2523.
  • L. Wei, C. Huang, G. C. Alexandropoulos, C. Yuen, Z. Zhang, M. Debbah, Channel Estimation for RIS-Empowered Multi-User MISO Wireless Communications, IEEE TCOM, vol. 68, June 2021, pp. 4144-4157. [PDF]

Beamforming

  • W. Xu, J. An, H. Li, L. Gan, C. Yuen, Algorithm Unrolling-Based Distributed Optimization for RIS-Assisted Cell-Free Networks, IEEE JIoT, June 2023. [PDF]
  • J. Yao, J. Xu, W. Xu, D. W. K. Ng, C. Yuen, X. You, Robust Beamforming Design for RIS-aided Cell-free Systems with CSI Uncertainties and Capacity-limited Backhaul, IEEE TCOM, vol. 71, Aug 2023, pp. 4636-4649.
  • W. Yan, W. Hao, C. Huang, G. Sun, O. Muta, H. Gacanin, C. Yuen, Beamforming Analysis and Design for Wideband THz Reconfigurable Intelligent Surface Communications, IEEE JSAC, vol. 41, Aug 2023, pp. 2306-2320.
  • W. Lyu, Y. Xiu, S. Yang, C. Yuen, Z. Zhang, Energy-Efficient Cell-Free Network Assisted by Hybrid RISs, IEEE WCL, vol. 12, Apr 2023, pp. 718-722.
  • W. Xu, J. An, C. Huang, L. Gan, C. Yuen, Deep Reinforcement Learning Based on Location-Aware Imitation Environment for RIS-Aided mmWave MIMO Systems, IEEE Wireless Communications Letters, vol. 11, July 2022, pp. 1493-1497.
  • Y. Xu, H. Xie, Q. Wu, C. Huang, C. Yuen, Robust Max-Min Energy Efficiency for RIS-aided HetNets with Distortion Noises, IEEE TCOM, vol. 70, Feb 2022, pp. 1457-1471.
  • K. Cui, H. Gao, C. Huang, C. Yuen, Robust Beamforming for RIS-assisted Wireless Communications with Discrete Phase Shifts, IEEE Wireless Communications Letters, Aug 2021.
  • Y. Xu, Z. Gao, Z. Wang, C. Huang, Z. Yang, C. Yuen, RIS-Enhanced WPCNs: Joint Radio Resource Allocation and Passive Beamforming Optimization, IEEE TVT, vol. 70, Aug 2021, pp. 7980-7991.
  • C. Huang, Z. Yang, G. C. Alexandropoulos, K. Xiong, L. Wei, C. Yuen, Z. Zhang, M. Debbah, Multi-hop RIS-Empowered Terahertz Communications: A DRL-based Hybrid Beamforming Design, IEEE JSAC, vol. 39, June 2021, pp. pp. 1663-1677. [PDF]
  • Y. Xiu, J. Zhao, C. Yuen, Z. Zhang, G. Guan, Secure Beamforming for Multiple Intelligent Reflecting Surfaces Aided mmWave Systems, IEEE Comms Letter, vol. 25, Feb 2021, pp. 417-421.
  • L. You, J. Xiong, D. W. K. Ng, C. Yuen, W. Wang, X. Gao, Energy Efficiency and Spectral Efficiency Tradeoff in RIS-Aided Multiuser MIMO Uplink Transmission, IEEE TSP, vol. 69, Dec 2020, pp. 1407-1421.
  • S. Abeywickrama, R. Zhang, Q. Wu, C. Yuen, Intelligent Reflecting Surface: Practical Phase Shift Model and Beamforming Optimization, IEEE TCOM, vol. 68, Sept 2020, pp. 5849-5863. [PDF]
  • C. Huang, R. Mo, C. Yuen, Reconfigurable Intelligent Surface Assisted Multiuser MISO Systems Exploiting Deep Reinforcement Learning, IEEE JSAC special issue on Multiple Antenna Technologies for Beyond 5G, vol. 38, Aug 2020, pp. 1839-1850. [PDF]

Placement and DoF and Channel Modeling

  • G. Sun, R. He, Y. Song, B. Ai, Y. Niu, H. Zhang, Z. Ma, Y. Li, J. Li, C. Yuen, Analysis and Comparison of Narrowband Channels with Different Phase Shifts in RIS-Aided Communication System, IEEE Antennas and Wireless Propagation Letters, June 2023.
  • M. Misbah, Z. Kaleem, W. Khalid, C. Yuen, A. Jamalipour, Phase and 3D Placement Optimization for Rate Enhancement in RIS-Assisted UAV Networks, IEEE WCL, vol. 12, July 2023, pp. 1135-1138.
  • Y. Cheng, W. Peng, C. Huang, G. C. Alexandropoulos, C. Yuen, M. Debbah, RIS-Aided Wireless Communications: Extra Degrees of Freedom via Rotation and Location Optimization, IEEE TWC, vol. 21, Aug 2022. pp. 6656-6671. [PDF]

Physical Layer Security

  • F. Naeem, M. Ali, G. Kaddoum, C. Huang, C. Yuen, Security and Privacy for Reconfigurable Intelligent Surface in 6G: A Review of Prospective Applications and Challenges, IEEE Open Journal of the Communications Society, May 2023.
  • J. Xu, C. Yuen, C. Huang, N. Ul Hassan, G. C. Alexandropoulos, M. D. Renzo, M. Debbah, Reconfiguring wireless environments via intelligent surfaces for 6G: Reflection, modulation, and security, SCIENCE CHINA Information Sciences, Nov 2022. [PDF]

RIS Modulation

  • J. Yao, J. Xu, W. Xu, C. Yuen, X. You, Superimposed RIS-phase Modulation for MIMO Communications: A Novel Paradigm of Information Transfer, IEEE TWC, Aug 2023.
  • Y. Yuan, X. Xu, S. Han, M. Sun, P. Zhang, C. Yuen, Energy Aware Multi-User Symbiotic Communications Enhanced by RIS for Passive IoT, IEEE JIoT, June 2023.
  • H. Liu, J. An, Y. Wang, J. Xing, G. Lu, C. Yuen, K-Means Based Constellation Optimization for Index Modulated Reconfigurable Intelligent Surfaces, IEEE Comms Letters, vol. 27, Aug 2023, pp. 2152-2156. [PDF]
  • C. Zhou, Y. Xu, D. Li, C. Huang, C. Yuen, J. Zhou, G. Yang, Energy-Efficient Maximization for RIS-Aided MISO Symbiotic Radio Systems, IEEE TVT, May 2023.
  • X. Cai, C. Huang, J. An, W. Xu, L. Wang, C. Yuen, Non-Coherent Chaotic Communications Aided by RIS: A Performance-Enhanced Approach, IEEE Communications Letters, vol. 27, June 2023, pp. 1614-1618.
  • X. Cai, C. Huang, E. Basar, W. Xu, L. Wang, M. D. Renzo, C. Yuen, Towards RIS-aided Non-Coherent Communications: A Joint Index Keying M-ary Differential Chaos Shift Keying System, IEEE TWC, Apr 2023.
  • X. Cai, C. Yuen, C. Huang, W. Xu, L. Wang, Towards Chaotic Secure Communications: An RIS Enabled M-ary Differential Chaos Shift Keying System with Block Interleaving, IEEE TCOM, vol. 71, June 2023, pp. 3541-3558.
  • J. Yao, J. Xu, W. Xu, C. Yuen, X. You, A Universal Framework of Superimposed RIS-Phase Modulation for MISO Communication, IEEE TVT, vol. 72, Apr 2023, pp. 5413-5418. [PDF]

MAC and Spectrum Learning

  • Y. Zou, Y. Liu, X. Mu, X. Zhang, Y. Liu, C. Yuen, Machine Learning in RIS-assisted NOMA IoT Networks, IEEE JIoT, Feb 2023.
  • B. Yang, X. Cao, C. Huang, C. Yuen, M. D. Renzo, Y. L. Guan, D. Niyato, L. Qian, and M. Debbah, Federated Spectrum Learning for Reconfigurable Intelligent Surfaces-Aided Wireless Edge Networks, IEEE TWC, vol. 21, Nov 2022, pp. 9610-9626. [PDF]
  • X. Cao, B. Yang, C. Huang, G. C. Alexandropoulos, C. Yuen, Z. Han, H. V. Poor, and L. Hanzo, Massive Access of Static and Mobile Users via Reconfigurable Intelligent Surfaces: Protocol Design and Performance Analysis, IEEE JSAC, vol. 40, Apr 2022, pp. 1253-1269.
  • B. Yang, X. Cao, C. Huang, Y. L. Guan, C. Yuen, M. D. Renzo, D. Niyato, M. Debbah, L. Hanzo, Spectrum Learning-Aided Reconfigurable Intelligent Surfaces for ‘Green’ 6G Networks, IEEE Network Magazine, vol. 35, Dec 2021, pp. 20-26. [PDF]
  • X. Cao, B. Yang, C. Huang, C. Yuen, Y. Zhang, D. Niyato, Z. Han, Converged Reconfigurable Intelligent Surface and Mobile Edge Computing for Space Information Networks, IEEE Network Magazine, vol. 35, Aug 2021, pp. 42-48. [PDF]
  • X. Cao, B. Yang, C. Huang, C. Yuen, M. D. Renzo, Z. Han, D. Niyato, H. V. Poor, L. Hanzo, AI-Assisted MAC for Reconfigurable Intelligent Surface-Aided Wireless Networks: Challenges and Opportunities, IEEE Communications Magazine, vol. 59, July 2021, pp. 21-27. [PDF]
  • X. Cao, B. Yang, C. Huang, C. Yuen, M. D. Renzo, D. Niyao, Z. Han, Reconfigurable Intelligent Surface-assisted Aerial-Terrestrial Communications via Multi-task Learning, IEEE JSAC, vol. 39, Oct 2021, pp. 3035-3050. [PDF]
  • X. Cao, B. Yang, H. Zhang, C. Huang, C. Yuen, Z. Han, Reconfigurable Intelligent Surface-Assisted MAC for Wireless Networks: Protocol Design, Analysis, and Optimization, IEEE JIoT, vol. 8, Sept 2021, pp. 14171-14186. [PDF]
  • B. Yang, X. Cao, C. Huang, C. Yuen, L. Qian, M. D. Renzo, Intelligent Spectrum Learning for Wireless Networks with Reconfigurable Intelligent Surfaces, IEEE TVT, vol. 70, Apr 2021, pp. 3920-3925. [PDF]
  • H. Meng, Q. Wu, W. Chen, Z. Fei, H.-C. So, C. Yuen, Intelligent Reflecting Surface Assisted Localization: Performance Analysis and Algorithm Design, IEEE Wireless Communications Letters, 13(1), 84-88, Jan 2024.
  •  E. Basar, G. C. Alexandropoulos, Y. Liu, Q. Wu, S. Jin, C. Yuen, O. A. Dobre, R. Schober, Reconfigurable Intelligent Surfaces for 6G: Emerging Hardware Architectures, Applications, and Open Challenges, IEEE Vehicular Technology Magazine, 19(3), 27-47, Sept 2024.
  • E. Shi, J. Zhang, H. Du, B. Ai, C. Yuen, D. Niyato, K. B. Letaief, X. Shen, RIS-Aided Cell-Free Massive MIMO Systems for 6G: Fundamentals, System Design, and Applications, Proceedings of the IEEE, 112(4), 331-364, Apr 2024.
  • R. Kaur, B. Bansal, S. Majhi, S. Jain, C. Huang, C. Yuen, A Survey on Reconfigurable Intelligent Surface for Physical Layer Security of Next-Generation Wireless Communications, IEEE Open Journal of Vehicular Technology, 5, 172-199, Jan 2024.
  • N. Hong, L. Xia, J. An, L. Zhang, C. Yuen, On the Efficient Design of Stacked Intelligent Metasurfaces for Secure SISO Transmission,  IEEE Transactions on Information Forensics and Security, 20, 60-70, Nov 2024.