无线电通信技术2025，Vol.51Issue(2)：367-373,7.DOI:10.3969/j.issn.1003-3114.2025.02.019
智能反射面辅助的通信系统的用户和速率的优化
Optimal User's Sum Rate Method for Intelligent Reflection Surface-aided Communication System
摘要
Abstract
Intelligent Reflecting Surface(IRS)enhances the robustness of wireless communication.However,addressing channel-estimation overheads caused by the large number of IRS elements remains a major challenge.In particular,these overheads increase proportionately with the number of IRS elements,thereby making it difficult to handle multiple IRSs.Therefore,Optimal Sum Rate of User Based on Reflection Control Pattern(OSRP)algorithm is proposed in this paper.A reflection control model is constructed and on-ly a part of IRS is selected to provide reflection service for users according to the attenuation information of the reflection link.The o-verhead by the estimation of Channel State Information(CSI)is reducing.Based on the incomplete CSI,the beamforming matrix and IRS phase are optimized to improve the sum rate of users.Numerical results shows that OSRP algorithm has reduced the complexity and obtained better user's sum rate,compared with sum rate optimization based on complete CSI.关键词
智能反射面/信道状态信息/和速率/反射控制模型/波束赋形Key words
IRS/CSI/sum rate/reflection control pattern/passive beamforming分类
电子信息工程引用本文复制引用
陈素霞,张嘉晨,张桂杰..智能反射面辅助的通信系统的用户和速率的优化[J].无线电通信技术,2025,51(2):367-373,7.基金项目
吉林省教育厅科研项目(JJKH20220445KJ,JJKH20220446KJ) Science Research Project of Jilin Provincial Department of Education(JJKH20220445KJ,JJKH20220446KJ) （JJKH20220445KJ,JJKH20220446KJ）
