Average sum-rate maximization for coupled phase-shift STAR-RIS enhanced multi-user MISO-OFDM system

S Huang, W Wang, R Jiang, X Wang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) is
emerging as a promising technology by achieving full-space coverage and further improving …

Joint beamforming optimization for reconfigurable intelligent surface-enabled MISO-OFDM systems

K Feng, X Li, Y Han, Y Chen - China Communications, 2021 - ieeexplore.ieee.org
In this paper, we investigate the reconfigurable intelligent surface (RIS)-enabled multiple-
input-single-output orthogonal frequency division multiplexing (MISO-OFDM) system under …

Max-min rate optimization for multi-user MISO-OFDM systems assisted by RIS with a wideband model

Y Quan, Z Tian, Z Chen, M Wang, Y Jia - Frontiers of Information …, 2023 - Springer
Reconfigurable intelligent surfaces (RISs) have the capability to change the wireless
environment smartly Considering the attenuation of subchannels and crowding users …

[HTML][HTML] Drl-based max-min fair RIS discrete phase shift optimization for MISO-OFDM systems

P Chen, H Zhang, X Li, S Jin - Journal of Information and Intelligence, 2023 - Elsevier
In this paper, we investigate a reconfigurable intelligent surface (RIS) assisted downlink
orthogonal frequency division multiplexing (OFDM) transmission system. Taking into …

IRS-enhanced wideband MU-MISO-OFDM communication systems

H Li, R Liu, M Liy, Q Liu, X Li - 2020 IEEE Wireless …, 2020 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is considered as an enabling technology for future
wireless communication systems since it can intelligently change the wireless environment …

Maximizing spectral and energy efficiency in multi-user MIMO OFDM systems with RIS and hardware impairment

M Soleymani, I Santamaria, A Sezgin… - arXiv preprint arXiv …, 2024 - arxiv.org
An emerging technology to enhance the spectral efficiency (SE) and energy efficiency (EE)
of wireless communication systems is reconfigurable intelligent surface (RIS), which is …

Weighted sum rate optimization for STAR-RIS-assisted MIMO system

H Niu, Z Chu, F Zhou, P Xiao… - IEEE transactions on …, 2021 - ieeexplore.ieee.org
In this work, we study a simultaneous transmitting and reflecting reconfigurable intelligent
surface (RIS)-assisted multiple-input multiple-output network. For the system under …

Hybrid reinforcement learning for STAR-RISs: A coupled phase-shift model based beamformer

R Zhong, Y Liu, X Mu, Y Chen, X Wang… - IEEE Journal on …, 2022 - ieeexplore.ieee.org
A simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)
assisted multi-user downlink multiple-input single-output (MISO) communication system is …

Multi-Functional RIS: Signal Modeling and Optimization

A Zheng, W Ni, W Wang, H Tian… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, a multi-functional reconfigurable intelligent surface (MF-RIS) assisted non-
orthogonal multiple access multiuser network is investigated. In contrast to existing studies …

Downlink Resource Optimization in Multi-STAR-RIS-Assisted MIMO Networks

Q Liu, J Zhao, F Shen, J Joung… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs)
enables full-space manipulation of signal propagation. In this work, we consider a multi …