Deep Unfolded Fractional Programming Based Beamforming in RIS-Aided MISO Systems

W Xia, Y Jiang, B Zhao, H Zhao… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a promising solution to programmable wireless
channels. However, most existing RIS phase optimization algorithms, relying on iterative …

A Deep Reinforcement Learning Approach to Two-Timescale Transmission for RIS-Aided Multiuser MISO systems

H Zhang, X Li, N Gao, X Yi, S Jin - IEEE Wireless …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has drawn great attention recently as a promising
technology for future wireless networks. In this letter, considering the two-timescale …

Unsupervised learning-based joint active and passive beamforming design for reconfigurable intelligent surfaces aided wireless networks

H Song, M Zhang, J Gao… - ieee communications …, 2020 - ieeexplore.ieee.org
This letter consider a reconfigurable intelligent surface (RIS) aided multi-user multiple-input
single-output (MISO) downlink system, where transmit beamforming and phase shifts of RIS …

Low-Complexity Joint Beamforming for RIS-Assisted MU-MISO Systems Based on Model-Driven Deep Learning

W Jin, J Zhang, CK Wen, S Jin, X Li… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RIS) can improve signal propagation environments by
adjusting the phase of the incident signal. However, optimizing the phase shifts jointly with …

Weighted sum-rate maximization for multi-hop RIS-aided multi-user communications: A minorization-maximization approach

Z Zhang, Z Zhao - 2021 IEEE 22nd International Workshop on …, 2021 - ieeexplore.ieee.org
The reconfigurable intelligent surface (RIS) has aroused much research attention recently
due to its potential benefits in 5G and beyond wireless networks. This paper considers a …

Fitness landscape analysis and niching genetic approach for hybrid beamforming in RIS-aided communications

B Yan, Q Zhao, M Li, J Zhang, JA Zhang, X Yao - Applied Soft Computing, 2022 - Elsevier
Reconfigurable intelligent surface (RIS) is a revolutionizing technology to achieve cost-
effective communications. The active beamforming at the base station (BS) and the discrete …

Robust beamforming for RIS-aided communications: Gradient-based manifold meta learning

F Zhu, X Wang, C Huang, Z Yang, X Chen… - arXiv preprint arXiv …, 2024 - arxiv.org
Reconfigurable intelligent surface (RIS) has become a promising technology to realize the
programmable wireless environment via steering the incident signal in fully customizable …

Machine learning-based reconfigurable intelligent surface-aided MIMO systems

NT Nguyen, LV Nguyen, T Huynh-The… - 2021 IEEE 22nd …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) technology has recently emerged as a spectral-and
cost-efficient approach for wireless communications systems. However, existing hand …

Passive beamforming design for reconfigurable intelligent surface-aided OFDM: A fractional programming based approach

K Feng, Y Chen, Y Han, X Li… - 2021 IEEE 93rd Vehicular …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a low-cost device envisioned to achieve
substantial promotion in both spectrum and energy efficiency in the future wireless …

A robust deep learning-based beamforming design for RIS-assisted multiuser MISO communications with practical constraints

W Xu, L Gan, C Huang - IEEE transactions on Cognitive …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has become a promising technology to improve
wireless communication in recent years. It steers the incident signals to create a favorable …