QoS control under perfect and imperfect CSI in intelligent reflecting surface-assisted multi-cast multi-group communication systems

TT Nguyen, KK Nguyen - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
To address the explosion demand for data-intensive applications, enhancing wireless
transmission capacity has become crucial for today's networks. This paper focuses on …

Training optimization for subarray-based IRS-assisted MIMO communications

H Dai, Z Zhang, S Gong, C Xing… - IEEE Internet of Things …, 2021 - ieeexplore.ieee.org
In this article, we investigate the training optimization for multiple-input–multiple-output
(MIMO)-aided Internet of Things (IoTs) systems that employ subarray-based intelligent …

Optimization-driven deep reinforcement learning for robust beamforming in IRS-assisted wireless communications

J Lin, Y Zou, X Dong, S Gong, DT Hoang… - arXiv preprint arXiv …, 2020 - arxiv.org
Intelligent reflecting surface (IRS) is a promising technology to assist downlink information
transmissions from a multi-antenna access point (AP) to a receiver. In this paper, we …

Beamforming optimization for intelligent reflecting surface assisted MISO: A deep transfer learning approach

Y Ge, J Fan - IEEE Transactions on Vehicular Technology, 2021 - ieeexplore.ieee.org
This article studies the beamforming optimization for intelligent reflecting surface (IRS)
assisted multiple-input single-output (MISO) wireless communication system. We establish a …

Joint user scheduling, phase shift control, and beamforming optimization in intelligent reflecting surface-aided systems

R Huang, VWS Wong - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
In this paper, we formulate a joint uplink scheduling, phase shift control, and beamforming
optimization problem in intelligent reflecting surface (IRS)-aided systems. We consider …

Intelligent reflecting surface-assisted mmWave communication exploiting statistical CSI

F Yang, JB Wang, H Zhang, C Chang… - ICC 2020-2020 IEEE …, 2020 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is a new technique to improve the ergodic capacity in
wireless networks. IRS consists of a large number of passive elements which digitally …

Two-timescale beamforming optimization for intelligent reflecting surface aided multiuser communication with QoS constraints

MM Zhao, A Liu, Y Wan, R Zhang - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is an emerging technology that is able to reconfigure the
wireless channel via tunable passive signal reflection and thereby enhance the …

Passive Beamforming Design of IRS-Assisted MIMO Systems Based on Deep Learning

H Zhang, Q Jia, M Li, J Wang, Y Song - Sensors, 2023 - mdpi.com
In the intelligent reflecting surface (IRS)-assisted MIMO systems, optimizing the passive
beamforming of the IRS to maximize spectral efficiency is crucial. However, due to the unit …

Spectral-energy efficient resource allocation in RIS-aided FD-MIMO systems

S Kurma, M Katwe, K Singh… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Re-configurable intelligent surface (RIS)-aided communication has been envisaged as a
frontier scheme to enable ultra-high spectral efficiency (SE) and energy efficiency (EE) for …

Deep reinforcement learning for practical phase-shift optimization in RIS-aided MISO URLLC systems

R Hashemi, S Ali, NH Mahmood… - IEEE Internet of Things …, 2022 - ieeexplore.ieee.org
We study the joint active/passive beamforming and channel blocklength (CBL) allocation in
a nonideal reconfigurable intelligent surface (RIS)-aided ultrareliable and low-latency …