论文标题
通道老化和相位噪声对智能反射表面的性能影响
Performance Impact of Channel Aging and Phase Noise on Intelligent Reflecting Surface
论文作者
论文摘要
这封信旨在阐明通道老化和相位噪声对智能反射表面辅助无线系统的性能的影响。我们首先是数学上建模过时的通道状态信息（CSI），原因是多普勒的偏移和由于硬件损伤引起的相位噪声。然后，理论上得出了嘈杂和老化的CSI下可达到的光谱效率的封闭形式表达。说明了一些典型的仿真结果，以证明性能影响。
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 We first model mathematically the outdated channel state information (CSI) due to Doppler shifts and phase noise stemming from hardware impairment.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.
