Performance Analysis of Intelligent Reflecting Surface Assisted Wireless Communication System  

作　　者：Weiqiang Tan Quanquan Zhou Weijie Tan Longcheng Yang Chunguo Li 

机构地区：[1]School of Computer Science and Cyber Engineering,Guangzhou University,Guangzhou,510006,China [2]Key Laboratory of Advanced Manufacturing Technology,Ministry of Education,Guizhou University,Guiyang,550025,China [3]Sichuan Key Laboratory of Indoor Space Layout Optimization and Security Guarantee,Chengdu Normal University,Chengdu,611130,China [4]School of Information Science and Engineering,Southeast University,Nanjing,210096,China

出　　处：《Computer Modeling in Engineering & Sciences》2023年第10期775-787,共13页工程与科学中的计算机建模（英文）

基　　金：supported in part by the Joint Research Fund for Guangzhou University and Hong Kong University of Science and Technology under Grant No.YH202203;the Guangzhou Basic Research Program Municipal School(College)Joint Funding Project,the Research Project of Guizhou University for Talent Introduction under Grant No.[2020]61;the Cultivation Project of Guizhou University under Grant No.[2019]56;the Open Fund of Key Laboratory of Advanced Manufacturing Technology,Ministry of Education under Grant No.GZUAMT2021KF[01];the National Natural Science Foundation of China under Grant Nos.51978089 and 62171119;the Key R&D Plan of Sichuan Science and Technology Department under Grant No.22ZDYF2726;the Chengdu Normal University Scientific Research and Innovation Team under Grant Nos.CSCXTD2020B09,ZZBS201907,CS21ZC01;the Open Project of Intelligent Manufacturing Industry Technology Research Institute under Grant No.ZNZZ2208;the National Key Research and Development Program of China under Grant No.2020YFB1807201;Key research and development plan of Jiangsu Province under Grant No.BE2021013-3.

摘　　要：In this paper,we investigate the end-to-end performance of intelligent reflecting surface(IRS)-assisted wireless communication systems.We consider a system in which an IRS is deployed on a uniform planar array(UPA)configuration,including a large number of reflecting elements,where the transmitters and receivers are only equipped with a single antenna.Our objective is to analytically obtain the achievable ergodic rate,outage probability,and bit error rate(BER)of the system.Furthermore,to maximize the system’s signal-to-noise ratio(SNR),we design the phase shift of each reflecting element and derive the optimal reflection phase of the IRS based on the channel state information(CSI).We also derive the exact expression of the SNR probability density function(p.d.f.)and show that it follows a non-central Chi-square distribution.Using the p.d.f.,we then derive the theoretical results of the achievable rate,outage probability,and BER.The accuracy of the obtained theoretical results is also verified through numerical simulation.Itwas shown that the achievable rate,outage probability,and BER could be improved by increasing the number of reflecting elements and choosing an appropriate SNR regime.Furthermore,we also find that the IRS-assisted communication system achieves better performance than the existing end-to-end wireless communication.

关 键 词：Massive MIMO intelligent reflecting surface uniform planar array achievable ergodic rate 

分 类 号：TN92[电子电信—通信与信息系统]