Results 11 to 20 of about 10,047 (146)

Ergodic performance analysis of intelligent reflecting surface network with phase errors

open access: yesICT Express, 2023
This paper investigates the performance of using multiple intelligent reflecting surface (IRS)-assisted communication as compared to the hybrid approach. We demonstrate that for practical scenarios with a limited amount of radiated power, the performance
Fazal-E-Asim   +3 more
doaj   +1 more source

Sum Rate Optimization for MIMO Multicasting Network with Active IRS

open access: yesInternational Journal of Distributed Sensor Networks, 2023
This paper considers a multiple-input multiple-output (MIMO) multicasting system aided by the intelligent reflecting surface (IRS). We aim to maximize the sum information rate via jointly designing the transmit precoding matrix and the reflecting ...
Ping Li, Jinhong Bian
doaj   +1 more source

Sum Rate Optimization of IRS-Aided Uplink Muliantenna NOMA with Practical Reflection

open access: yesSensors, 2022
Recently, intelligent reflecting surfaces (IRSs) have drawn huge attention as a promising solution for 6G networks to enhance diverse performance metrics in a cost-effective way. For massive connectivity toward a higher spectral efficiency, we address an
Jihyun Choi   +3 more
doaj   +1 more source

Spectral and Energy Efficiency of IRS-Assisted MISO Communication with Hardware Impairments [PDF]

open access: yes, 2020
In this letter, we analyze the spectral and energy efficiency of an intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) downlink system with hardware impairments.
Alouini, Mohamed-Slim   +4 more
core   +4 more sources

Deep Reinforcement Learning for Intelligent Reflecting Surface-assisted D2D Communications

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2023
In this paper, we propose a deep reinforcement learning (DRL) approach for solving the optimisation problem of the network’s sum-rate in device-to-device (D2D) communications supported by an intelligent reflecting surface (IRS).
Khoi Khac Nguyen   +2 more
doaj   +1 more source

Intelligent Reflecting Surface Aided Multigroup Multicast MISO Communication Systems [PDF]

open access: yes, 2020
Intelligent reflecting surface (IRS) has recently been envisioned to offer unprecedented massive multiple-input multiple-output (MIMO)-like gains by deploying large-scale and low-cost passive reflection elements. By adjusting the reflection coefficients,
Nallanathan, Arumugam   +4 more
core   +2 more sources

Multicell MIMO Communications Relying on Intelligent Reflecting Surfaces [PDF]

open access: yes, 2020
Intelligent reflecting surfaces (IRSs) constitute a disruptive wireless communication technique capable of creating a controllable propagation environment.
Elkashlan, Maged   +6 more
core   +2 more sources

Intelligent reflecting surface-assisted cognitive radio-inspired rate-splitting multiple access systems

open access: yesDigital Communications and Networks, 2023
Intelligent reflecting surface (IRS) has been widely regarded as a promising technology for configuring wireless propagation environments. In this paper, we utilize IRS to assist transmission of a secondary user (SU) in a cognitive radio-inspired rate ...
Peixu Liu   +4 more
doaj   +1 more source

Intelligent Reflecting Surface for Spectral Efficiency Maximization in the Multi-User MISO Communication Systems

open access: yesIEEE Access, 2021
This paper proposes an intelligent reflective surface (IRS) design scheme to improve the spectral efficiency (SE) for downlink multi-user (MU) multiple-input-single-output (MISO) system. IRS composed of low-cost reflecting elements is expected to be used
Ji-Sung Jung   +3 more
doaj   +1 more source

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