Best Readings
Overview and Fundamentals of BD-RIS
H. Li, S. Shen, M. Nerini, and B. Clerckx, "Reconfigurable intelligent surfaces 2.0: Beyond diagonal phase shift matrices," IEEE Commun. Mag., 2023.
S. Shen, B. Clerckx, and R. Murch, "Modeling and architecture design of reconfigurable intelligent surfaces using scattering parameter network analysis," IEEE Trans. Wireless Commun., 2022.
Architecture Design of BD-RIS
Static BD-RIS Architectures
M. Nerini, S. Shen, H. Li, and B. Clerckx, "Beyond diagonal reconfigurable intelligent surfaces utilizing graph theory: Modeling, architecture design, and optimization," IEEE Trans. Wireless Commun., 2024.
M. Nerini, and B. Clerckx, "Pareto frontier for the performance-complexity trade-off in beyond diagonal reconfigurable intelligent surfaces," IEEE Commun. Lett., 2023.
H. Li, S. Shen, and B. Clerckx, "Beyond diagonal reconfigurable intelligent surfaces: A multi-sector mode enabling highly directional full-space wireless coverage," IEEE J. Sel. Areas Commun., 2023.
H. Li, S. Shen, and B. Clerckx, "Beyond diagonal reconfigurable intelligent surfaces: From transmitting and reflecting modes to single-, group-, and fully-connected architectures," IEEE Trans. Wireless Commun., 2023.
Dynamic BD-RIS Architectures
Q. Li, M. El-Hajjar, I. Hemadeh, A. Shojaeifard, and L. Hanzo, "Coordinated Reconfigurable Intelligent Surfaces: Non-Diagonal Group-Connected Design," IEEE Trans. Veh. Technol., 2024.
H. Li, S. Shen, and B. Clerckx, "A dynamic grouping strategy for beyond diagonal reconfigurable intelligent surfaces with hybrid transmitting and reflecting mode," IEEE Trans. Veh. Technol., 2023.
Q. Li et al., "Reconfigurable intelligent surfaces relying on non-diagonal phase shift matrices," IEEE Trans. Veh. Technol., 2022.
Optimization and Performance Analysis of BD-RIS
Optimization of BD-RIS
I. Santamaria, M. Soleymani, E. Jorswieck, J. Gutiérrez, "MIMO capacity maximization with beyond-diagonal RIS," arXiv:2406.02170, 2024.
W. Sun, S. Sun, T. Shi, X. Su and R. Liu, "A new model of beyond diagonal reconfigurable intelligent surfaces (BD-RIS) for the corresponding quantization and optimization," IEEE Trans. Wireless Commun., 2024.
M. Nerini, S. Shen, and B. Clerckx, "Static grouping strategy design for beyond diagonal reconfigurable intelligent surfaces," IEEE Commun. Lett., 2024.
Y. Zhou, Y. Liu, H. Li, Q. Wu, S. Shen, and B. Clerckx, "Optimizing power consumption, energy efficiency and sum-rate using beyond diagonal RIS — A unified approach," IEEE Trans. Wireless Commun., 2023.
T. Fang, and Y. Mao, "A low-complexity beamforming design for beyond-diagonal RIS aided multi-user networks," IEEE Commun. Lett., 2023.
M. Nerini, S. Shen, and B. Clerckx, "Closed-form global optimization of beyond diagonal reconfigurable intelligent surfaces," IEEE Trans. Wireless Commun., 2023.
M.-A. Kim, S.-G. Yoo, H.-D. Kim, K.-H. Shin, and H.-K. Song, "Scattering matrix design of reconfigurable intelligent surface based on group connected impedance network in MU-MIMO system," Proc. 14th International Conference on Ubiquitous and Future Networks (ICUFN), 2023.
I. Santamaria, M. Soleymani, E. Jorswieck, and J. Gutierrez, "SNR maximization in beyond diagonal RIS-assisted single and multiple antenna links," IEEE Signal Process. Lett., 2023.
G. Bartoli, A. Abrardo, N. Decarli, D. Dardari, and M. Di Renzo, "Spatial multiplexing in near field MIMO channels with reconfigurable intelligent surfaces," IET Signal Processing, 2023.
Optimization of BD-RIS with Machine Learning
S. Sobhi-Givi, M. Nouri, H. Behroozi, and Z. Ding, "Joint BS and beyond diagonal RIS beamforming design with DRL methods for mmWave 6G mobile communications," Proc. IEEE Wireless Communications and Networking Conference (WCNC), Dubai, United Arab Emirates, 2024.
Performance Analysis of BD-RIS
M. Samy, H. Al-Hraishawi, A. B. M. Adam, K. Ntontin, S. Chatzinotas, and B. Otteresten, "Beyond diagonal RIS-aided networks: Performance analysis and sectorization tradeoff," arXiv:2406.04009, 2024.
Channel Estimation for BD-RIS
H. Li, S. Shen, Y. Zhang, and B. Clerckx, "Channel estimation and beamforming for beyond diagonal reconfigurable intelligent surfaces," arXiv:2403.18087, 2024.
H. Li, Y. Zhang, and B. Clerckx, "Channel estimation for beyond diagonal reconfigurable intelligent surfaces with group-connected architectures," Proc. IEEE 9th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2023.
Modeling and Optimization of BD-RIS with Hardware Impairments
Physics-Compliant Modeling of BD-RIS
P. del Hougne, "Physics-compliant diagonal representation of beyond-diagonal RIS," arXiv:2403.17222, 2024.
M. Nerini, S. Shen, H. Li, M. Di Renzo, and B. Clerckx, "A universal framework for multiport network analysis of reconfigurable intelligent surfaces," IEEE Trans. Wireless Commun., 2024.
BD-RIS with Lossy Interconnections
M. Nerini, G. Ghiaasi, and B. Clerckx, "Localized and distributed beyond diagonal reconfigurable intelligent surfaces with lossy interconnections: Modeling and optimization" arXiv:2402.05881, 2024.
BD-RIS for Wideband Communications
O. T. Demir, and E. Bjornson, "Wideband channel capacity maximization with beyond diagonal RIS reflection matrices," arXiv:2404.00982, 2024.
H. Li, M. Nerini, S. Shen, and B. Clerckx, "Beyond diagonal reconfigurable intelligent surfaces in wideband OFDM communications: Circuit-based modeling and optimization," arXiv:2405.07297, 2024.
H. Li, M. Nerini, S. Shen, and B. Clerckx, "Wideband modeling and beamforming for beyond diagonal reconfigurable intelligent surfaces," arXiv:2403.12893, 2024.
M. Soleymani, I. Santamaria, A. Sezgin, and E. Jorswieck, "Maximizing spectral and energy efficiency in multi-user MIMO OFDM systems with RIS and hardware impairment," arXiv:2401.11921, 2024.
A. S. de Sena, M. Rasti, N. H. Mahmood, and M. Latva-aho, "Beyond diagonal RIS for multi-band multi-cell MIMO networks: A practical frequency-dependent model and performance analysis," arXiv:2401.06475, 2024.
BD-RIS with Mutual Coupling
H. Li, S. Shen, M. Nerini, M. Di Renzo, and B. Clerckx, "Beyond diagonal reconfigurable intelligent surfaces with mutual coupling: Modeling and optimization," IEEE Commun. Lett., 2024.
BD-RIS with Discrete-Value Scattering Matrix
M. Nerini, S. Shen, and B. Clerckx, "Discrete-value group and fully connected architectures for beyond diagonal reconfigurable intelligent surfaces," IEEE Trans. Veh. Technol., 2023.
Applications of BD-RIS and Integration with Other Technologies
Applications of BD-RIS
H. Wang, Z. Han, and L. Swindlehurst, "Channel reciprocity attacks using intelligent surfaces with non-diagonal phase shifts," IEEE Open J. Commun. Soc., 2024.
BD-RIS and Terahertz (THz)
W. U. Khan, C. K. Sheemar, Z. Abdullah, E. Lagunas, S. Chatzinotas, "Beyond diagonal IRS assisted ultra massive THz systems: A low resolution approach," arXiv:2406.15880, 2024.
A. Mahmood, T. X. Vu, S. Chatzinotas, B. Ottersten, "Enhancing indoor and outdoor THz communications with beyond diagonal-IRS: Optimization and performance analysis," arXiv:2403.17913, 2024.
BD-RIS and Non-Terrestrial Networks (NTNs)
W. U. Khan, A. Mahmood, M. A. Jamshed, E. Lagunas, M. Ahmed, S. Chatzinotas, "Beyond diagonal RIS for 6G non-terrestrial networks: Potentials and challenges," arXiv:2406.10691, 2024.
BD-RIS and Stacked Intelligent Metasurface (SIM)
M. Nerini, and B. Clerckx, "Physically consistent modeling of stacked intelligent metasurfaces implemented with beyond diagonal RIS," IEEE Commun. Lett., 2024.
BD-RIS and Simultaneous Wireless Information and Power Transfer (SWIPT)
T. D. Hua, M. Mohammadi, H. Q. Ngo, and M. Matthaiou, "Cell-free massive MIMO SWIPT with beyond diagonal reconfigurable intelligent surfaces," arXiv:2402.00646, 2024.
BD-RIS and Physical Layer Security
A. Agarwal and K. Singh, "Enhanced physical layer security for wireless systems with non-diagonal IRS," Proc. IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), Jaipur, India, 2023.
BD-RIS and Unmanned Aerial Vehicle (UAV)
A. M. Huroon, Y. -C. Huang, and L. -C. Wang, "Optimized transmission strategy for UAV-RIS 2.0 assisted communications using rate splitting multiple access," Proc. IEEE 98th Vehicular Technology Conference (VTC2023-Fall), 2023.
A. Mahmood, T. X. Vu, W. U. Khan, S. Chatzinotas, and B. Ottersten, "Joint computation and communication resource optimization for beyond diagonal UAV-IRS empowered MEC networks," arXiv:2311.07199, 2023.
BD-RIS and Massive MIMO
A. Mishra, Y. Mao, C. D’Andrea, S. Buzzi, and B. Clerckx, "Transmitter side beyond-diagonal reconfigurable intelligent surface for massive MIMO networks," IEEE Wireless Commun. Lett., 2023.
BD-RIS and Dual-Function Radar-Communication (DFRC)/Integrated Sensing and Communication (ISAC)
K. Chen, and Y. Mao, "Transmitter side beyond-diagonal RIS for mmWave integrated sensing and communications," arXiv:2404.12604, 2024.
Z. Liu, Y. Liu, S. Shen, Q. Wu, and Q. Shi, "Enhancing ISAC network throughput using beyond diagonal RIS," IEEE Wireless Commun. Lett., 2024.
Z. Guang, Y. Liu, Q. Wu, W. Wang, and Q. Shi, "Power minimization for ISAC system using beyond diagonal reconfigurable intelligent surface," IEEE Trans. Veh. Technol., 2024.
B. Wang, H. Li, Z. Cheng, S. Shen, and B. Clerckx, "A dual-function radar-communication system empowered by beyond diagonal reconfigurable intelligent surface," arXiv:2301.03286, 2023.
T. Esmaeilbeig, K. V. Mishra, and M. Soltanalian, "Beyond diagonal RIS: Key to next-generation integrated sensing and communications?," arXiv:2402.14157, 2024.
BD-RIS and Rate-Splitting Multiple Access (RSMA)
H. Li, S. Shen, and B. Clerckx, "Synergizing beyond diagonal reconfigurable intelligent surface and rate-splitting multiple access," IEEE Trans. Wireless Commun., 2024.
M. Soleymani, I. Santamaria, E. Jorswieck, and B. Clerckx, "Optimization of rate-splitting multiple access in beyond diagonal RIS-assisted URLLC systems," IEEE Trans. Wireless Commun., 2023.
M.-A. Kim, S.-G. Yoo, H.-D. Kim, K.-H. Shin, Y.-H. You, and H.-K. Song, "Group-connected impedance network of RIS-assisted rate-splitting multiple access in MU-MIMO wireless communication systems," Sensors, 2023.
T. Fang, Y. Mao, S. Shen, Z. Zhu, and B. Clerckx, "Fully connected reconfigurable intelligent surface aided rate-splitting multiple access for multi-user multi-antenna transmission," Proc. IEEE International Conference on Communications Workshops (ICC Workshops), 2022.