A Novel Deep Reinforcement Learning-based Approach for Enhancing Spectral Efficiency of IRS-assisted Wireless Systems

F Zohari, SM Shahabi, M Ardebilipour - arXiv preprint arXiv:2302.14706, 2023 - arxiv.org
This letter investigates an intelligent reflecting surfaces (IRS)-enhanced network from
spectral efficiency enhancement point of view for downlink multi-user (MU) multi-input-single …

Deep Reinforcement Learning Based Intelligent Reflecting Surface Optimization for TDD Multi-User MIMO Systems

F Zhao, W Chen, Z Liu, J Li, Q Wu - IEEE Wireless …, 2023 - ieeexplore.ieee.org
In this letter, we investigate the discrete phase shift design of the intelligent reflecting surface
(IRS) in a time-division duplexing (TDD) multi-user multiple-input-multiple-output (MIMO) …

Resource allocation for IRS-assisted networks: A deep reinforcement learning approach

S Ahmad, S Khan, KS Khan, F Naeem… - IEEE Communications …, 2023 - ieeexplore.ieee.org
In a wireless communication network, the propagation medium has been perceived as a
randomly behaving entity between the transmitter and receiver for a long time. However …

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 …

On the robustness of deep reinforcement learning in IRS-aided wireless communications systems

A Feriani, A Mezghani, E Hossain - arXiv preprint arXiv:2107.08293, 2021 - arxiv.org
We consider an Intelligent Reflecting Surface (IRS)-aided multiple-input single-output
(MISO) system for downlink transmission. We compare the performance of Deep …

Low-Complexity Algorithm for Maximizing the Weighted Sum-Rate of Intelligent Reflecting Surface Assisted Wireless Networks

Y Wang, L Fang, S Cai, Z Lian, Y Su… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) via using massive low-cost passive elements that can
reflect the signals by adjusting phase shifts provides a cost-effective and energy-efficient …

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 …

Heterogeneous Multi-Agent Reinforcement Learning for Joint Active and Passive Beamforming in IRS Assisted Communications

A Gao, X Sun, Y Xu, W Liang - 2023 32nd Wireless and Optical …, 2023 - ieeexplore.ieee.org
Ahstract-The Intelligent Reflecting Surface (IRS) has the potential to reconstruct the
electromagnetic propagation environment, paving the way for a new multi-IRS assisted …

Joint optimization of IRS-assisted MU-MIMO communication systems through a DRL-based twin delayed DDPG approach

D Pereira-Ruisánchez, Ó Fresnedo… - 2022 IEEE …, 2022 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS)-assisted multiple-input multiple-output (MIMO) systems
are foreseen as key enablers of beyond 5G (B5G) and 6G wireless communications. By …

Deep reinforcement learning based intelligent reflecting surface optimization for MISO communication systems

K Feng, Q Wang, X Li, CK Wen - IEEE Wireless …, 2020 - ieeexplore.ieee.org
This letter investigates the intelligent reflecting surface (IRS)-aided multiple-input single-
output wireless transmission system. Particularly, the optimization of the passive phase shift …