电子学报2025，Vol.53Issue(7)：2470-2481,12.DOI:10.12263/DZXB.20241029
电磁干扰对IRS辅助短包通信的影响
Impact of Electromagnetic Interference on IRS Aided Short-Packet Communication
摘要
Abstract
Intelligent reflecting surface(IRS)aided communication is regarded as one of the most promising tech-niques in the future wireless networks.When electromagnetic interference exists,the system performance of IRS aided com-munication degrades significantly due to the fact that IRS can amplify both the desired signal and the interference signal.Ul-tra reliable and low latency communication(URLLC)is an important application scenario in the future wireless networks.The impact of electromagnetic interference on IRS aided short-packet communication(SPC),which accomplishes URLLC,was analyzed in this paper.Under the assumption that small-scale fading followed Rician distribution and IRS used the sta-tistical channel state information(CSI)to adjust the phase shifts,the closed-form expression for average block error rate(BLER)at the user is firstly derived by using the central limit theorem(CLT),moment matching method,and SPC related theory.Then,an optimization algorithm based on bisection search algorithm is proposed to minimize the system transmis-sion latency under the reliability constraint of the user.Finally,simulation is used to validate the theoretical analysis.The simulation results show that,under the user's reliability constraint,the presence of electromagnetic interference obviously degrades the capability to lower the transmission latency by increasing the number of elements of IRS compared to the envi-ronment without electromagnetic interference.关键词
电磁干扰/智能反射面(IRS)/超可靠低延时通信(URLLC)/短包通信(SPC)/统计信道状态信息(CSI)Key words
electromagnetic interference/intelligent reflecting surface(IRS)/ultra-reliable and low-latency commu-nication(URLLC)/short packet communication(SPC)/statistical channel state information(CSI)分类
信息技术与安全科学引用本文复制引用
袁磊,雷妍,袁花花,莫名秀..电磁干扰对IRS辅助短包通信的影响[J].电子学报,2025,53(7):2470-2481,12.基金项目
甘肃省自然科学基金(No.22JR5RA490) The Natural Science Foundation of Gansu Province(No.22JR5RA490) （No.22JR5RA490）
