Hybrid nonlinear transceiver optimization for the RIS-aided MIMO downlink

Q Wang, C Xing, C Du, L Zhao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The hybrid nonlinear transceiver optimization problem of reconfigurable intelligent surface
(RIS)-aided multi-user multiple-input multiple-output (MU-MIMO) downlink is investigated …

Double-RIS aided multi-user MIMO communications: Common reflection pattern and joint beamforming design

P Zhang, S Gong, S Ma - IEEE Transactions on Vehicular …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has entered the public consciousness as a
promising technology for enhancing the performance of future wireless communication …

A KKT conditions based transceiver optimization framework for RIS-aided multiuser MIMO networks

C Xing, S Xie, S Gong, X Yang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In many core problems of signal processing and wireless communications, Karush-Kuhn-
Tucker (KKT) conditions based optimization plays a fundamental role. Hence we investigate …

Statistically robust transceiver design for multi-RIS assisted multi-user MIMO systems

K Xu, S Gong, M Cui, G Zhang… - IEEE Communications …, 2022 - ieeexplore.ieee.org
In this letter, we investigate the robust transceiver design for a downlink multi-user multiple-
input multiple-output (MIMO) system assisted by multiple reconfigurable intelligent surfaces …

RIS-aided MIMO systems with hardware impairments: Robust beamforming design and analysis

J Wang, S Gong, Q Wu, S Ma - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has been anticipated to be a novel cost-effective
technology to improve the performance of future wireless systems. In this paper, we …

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 …

Sum-rate maximization of RIS-aided multi-user MIMO systems with statistical CSI

H Zhang, S Ma, Z Shi, X Zhao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper investigates a reconfigurable intelligent surface (RIS)-aided multi-user multiple-
input multiple-output (MIMO) system by considering only the statistical channel state …

Joint transceiver and passive beamforming optimization for ris-assisted mimo systems

Y Zhao, W Xu, Y Huang, X You… - … and Signal Processing …, 2021 - ieeexplore.ieee.org
This paper investigates the transceiver and beamforming design for a reconfigurable
intelligent surface (RIS)-assisted multiple-antenna communication system. We aim to …

Optimizing Configuration Selection in Reconfigurable-Antenna MIMO Systems: Physics-Inspired Heuristic Solvers

I Krikidis, C Psomas, AK Singh… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Reconfigurable antenna multiple-input multiple-output (MIMO) is a foundational technology
for the continuing evolution of cellular systems, including upcoming 6G communication …

Joint Discrete Precoding and RIS Optimization for RIS-Assisted MU-MIMO Communication Systems

P Ramezani, Y Khorsandmanesh… - arXiv preprint arXiv …, 2024 - arxiv.org
This paper considers a multi-user multiple-input multiple-output (MU-MIMO) system where
the downlink communication between a base station (BS) and multiple user equipments …