Piecewise-drl: Joint beamforming optimization for ris-assisted mu-miso communication system

J Li, W Wang, R Jiang, X Wang, Z Fei… - IEEE Internet of …, 2023 - ieeexplore.ieee.org
With the widespread connectivity of everyday devices realized by the advent of the Internet
of Things (IoT), communication between users of different devices has become increasingly …

Sum Rate Optimization for Multi-IRS-Aided Multi-BS Communication System Based on Multi-Agent

M Fathy, Z Fei, J Guo, MS Abood - Electronics, 2024 - mdpi.com
Intelligent reflecting surface (IRS) is a revolutionizing technology for improving the spectral
and energy efficiency of future wireless networks. In this paper, we consider a downlink …

Deep reinforcement learning-empowered beamforming design for IRS-assisted MISO interference channels

J Zhang, H Zhang, Z Zhang, H Dai… - 2021 13th …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is a promising technology to enable programmable
wireless propagation environments, by dynamically adjusting its phase shifters. Unlike most …

[HTML][HTML] Machine-Learning-Based Optimization for Multiple-IRS-Aided Communication System

M Fathy, Z Fei, J Guo, MS Abood - Electronics, 2023 - mdpi.com
Due to the benefits of the spectrum and energy efficiency, intelligent reflecting surfaces
(IRSs) are regarded as a promising technology for future networks. In this work, we consider …

Symbol-level precoding design for IRS-assisted MU-MISO systems

R Liu, H Li, M Li, Q Liu - 2020 IEEE Wireless Communications …, 2020 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) has emerged as a promising solution to enhance wireless
communications in a low-cost and hardware-efficient fashion. Besides, symbol-level …

Symbol-level precoding design for intelligent reflecting surface assisted multi-user MIMO systems

R Liu, H Li, M Li, Q Liu - 2019 11th International Conference on …, 2019 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) has emerged as a promising solution to enhance wireless
information transmissions by adaptively controlling prorogation environment. Recently, the …

How Often Channel Estimation is Required for Adaptive IRS Beamforming: A Bilevel Deep Reinforcement Learning Approach

J Zhang, Z Wang, J Li, Q Wu, W Chen… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In an intelligent reflecting surface (IRS)-assisted wireless communication system, obtaining
the real-time channel state information (CSI) through channel estimation (CE) is crucial for …

Intelligent resource allocation for IRS-enhanced OFDM communication systems: A hybrid deep reinforcement learning approach

W Wu, F Yang, F Zhou, Q Wu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Orthogonal frequency division multiplexing (OFDM) systems have been widely applied in
practice since OFDM has diverse outstanding advantages. However, their performance …

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 …

Joint Optimization of IRS-Assisted Multi-User MIMO Systems with Low-resolution DACs

J Chen, W Tan, L Yang, C Li - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) technology is highly anticipated in future smart
communication systems as it can improve spectral efficiency (SE) by adjusting signal phase …