A Hybrid Relay and Intelligent Reflecting Surface Network and Its Ergodic Performance Analysis

被引：94

作者：

Abdullah, Zaid ^{[1
]}

Chen, Gaojie ^{[1
]}

Lambotharan, Sangarapillai ^{[2
]}

Chambers, Jonathon A. ^{[1
]}

机构：

[1] Univ Leicester, Sch Engn, Leicester LE1 7RU, Leics, England

[2] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, Loughborough LE11 3TU, Leics, England

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2020年 / 9卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

Relays; Fading channels; Upper bound; Rician channels; Optimization; Hybrid power systems; Array signal processing; Intelligent reflecting surface; decode-and-forward; power optimization; ergodic capacity; WIRELESS COMMUNICATION;

D O I：

10.1109/LWC.2020.2999918

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter proposes a novel hybrid relay and Intelligent Reflecting Surface (IRS) assisted system for future wireless networks. We demonstrate that for practical scenarios where the amount of radiated power and/or the number of reflecting elements are/is limited, the performance of an IRS-supported system can be significantly enhanced by utilizing a simple Decode-and-Forward (DF) relay. Tight upper bounds for the ergodic capacity are derived for the proposed scheme under different channel environments, and shown to closely match Monte-Carlo simulations.

引用

页码：1653 / 1657

页数：5

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