Performance Impact of Channel Aging and Phase Noise on Intelligent Reflecting Surface

被引：13
作者：
Jiang, Wei [1 ,2 ]
Schotten, Hans Dieter [1 ,2 ]
机构：
[1] German Res Ctr Artificial Intelligence DFKI, D-67663 Kaiserslautern, Germany
[2] Tech Univ TU Kaiserslautern, Dept Elect & Comp Engn, D-67663 Kaiserslautern, Germany
来源：
IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 01期
基金：
欧盟地平线“2020”;
关键词：
Phase noise; Aging; Hardware; Uplink; Receivers; Noise measurement; Mathematical models; 6G; channel aging; intelligent reflecting surface; IRS; outdated CSI; phase noise; reconfigurable intelligent surface;
D O I：
10.1109/LCOMM.2022.3214124
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This letter aims to clarify the impact of channel aging and phase noise on the performance of intelligent reflecting surface-aided wireless systems. We first model mathematically the outdated channel state information (CSI) due to Doppler shifts and phase noise stemming from hardware impairment. Then, a closed-form expression of achievable spectral efficiency under noisy and aged CSI is theoretically derived. Some typical simulation results to numerically demonstrate the performance impact are illustrated.
引用
收藏
页码：347 / 351
页数：5
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