Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system

Abstract Intelligent reflecting surface (IRS) is regarded as a promising emerging technology, which has shown enormous potentials for performance enhancement. This paper investigates the multiple IRS‐aided dual‐hop DF relaying system for both single‐user and multi‐user scenarios over Nakagami‐m fadi...

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Main Authors: Panpan Qian, Qiang Sun, Zihan Zhang, Huan Zhao
Format: Article
Language:English
Published: Wiley 2022-10-01
Series:IET Communications
Online Access:https://doi.org/10.1049/cmu2.12452
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author Panpan Qian
Qiang Sun
Zihan Zhang
Huan Zhao
author_facet Panpan Qian
Qiang Sun
Zihan Zhang
Huan Zhao
author_sort Panpan Qian
collection DOAJ
description Abstract Intelligent reflecting surface (IRS) is regarded as a promising emerging technology, which has shown enormous potentials for performance enhancement. This paper investigates the multiple IRS‐aided dual‐hop DF relaying system for both single‐user and multi‐user scenarios over Nakagami‐m fading. Based on a scenario with non‐orthogonal multiple access users, tight upper bounds for the ergodic capacity in perfect channel state information(pCSI) scenario are first derived, and then approximate expressions are obtained in imperfect CSI (ipCSI) mode. Moreover, the performance of multiple IRS‐aided DF relaying system are compared with multi‐IRSs‐only system and DF relaying‐only system. Finally, all the analytical results are verified using Monte Carlo simulations.
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spelling doaj.art-c57b9b28a7904c41a41c854be1b188652022-12-22T04:32:49ZengWileyIET Communications1751-86281751-86362022-10-0116161973198110.1049/cmu2.12452Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying systemPanpan Qian0Qiang Sun1Zihan Zhang2Huan Zhao3School of Information Science and Technology Nantong University Nantong ChinaSchool of Information Science and Technology Nantong University Nantong ChinaSchool of Information Science and Technology Nantong University Nantong ChinaSchool of Information Science and Technology Nantong University Nantong ChinaAbstract Intelligent reflecting surface (IRS) is regarded as a promising emerging technology, which has shown enormous potentials for performance enhancement. This paper investigates the multiple IRS‐aided dual‐hop DF relaying system for both single‐user and multi‐user scenarios over Nakagami‐m fading. Based on a scenario with non‐orthogonal multiple access users, tight upper bounds for the ergodic capacity in perfect channel state information(pCSI) scenario are first derived, and then approximate expressions are obtained in imperfect CSI (ipCSI) mode. Moreover, the performance of multiple IRS‐aided DF relaying system are compared with multi‐IRSs‐only system and DF relaying‐only system. Finally, all the analytical results are verified using Monte Carlo simulations.https://doi.org/10.1049/cmu2.12452
spellingShingle Panpan Qian
Qiang Sun
Zihan Zhang
Huan Zhao
Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
IET Communications
title Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
title_full Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
title_fullStr Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
title_full_unstemmed Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
title_short Ergodic capacity analysis of multiple IRS‐aided dual‐hop DF relaying system
title_sort ergodic capacity analysis of multiple irs aided dual hop df relaying system
url https://doi.org/10.1049/cmu2.12452
work_keys_str_mv AT panpanqian ergodiccapacityanalysisofmultipleirsaideddualhopdfrelayingsystem
AT qiangsun ergodiccapacityanalysisofmultipleirsaideddualhopdfrelayingsystem
AT zihanzhang ergodiccapacityanalysisofmultipleirsaideddualhopdfrelayingsystem
AT huanzhao ergodiccapacityanalysisofmultipleirsaideddualhopdfrelayingsystem