电讯技术2025，Vol.65Issue(10)：1657-1664,8.DOI:10.20079/j.issn.1001-893x.240510002
STAR-RIS辅助的安全MIMO系统的最大最小安全速率优化
Max-Min Security Rate Optimization in STAR-RIS Aided Secure MIMO Systems
摘要
Abstract
The simultaneous transmitting and reflecting reconfigurable intelligent surface(STAR-RIS)can independently adjust surface's reflection and transmission coefficients so as to enhance space coverage.For a multiple-input multiple-output(MIMO)communication system with a STAR-RIS,a base station(BS),an eavesdropper,and multiple users,the system security rate is studied.A joint design of the power allocation at the transmitter and phase shift matrices for reflection and transmission at the STAR-RIS is conducted,in order to maximize the worst achievable security data rate(ASDR).Since the problem is nonconvex and hence challenging,a particle swarm optimization(PSO)based algorithm is developed to tackle the problem.Both the cases of continuous and discrete phase shift matrices at the STAR-RIS are considered.Simulation results demonstrate the effectiveness of the proposed algorithm and shows the benefits of using STAR-RIS in MIMO mutliuser systems.关键词
多输入多输出(MIMO)/可同时透射和反射的可重构智能表面(STAR-RIS)/粒子群优化(PSO)/最大最小安全速率优化Key words
multiple-input multiple-output(MIMO)/reflecting reconfigurable intelligent surface(STAR-RIS)/particle swarm optimization(PSO)/max-min security rate optimization分类
信息技术与安全科学引用本文复制引用
黄晋浩,缪玲,索龙,周雯..STAR-RIS辅助的安全MIMO系统的最大最小安全速率优化[J].电讯技术,2025,65(10):1657-1664,8.基金项目
国家自然科学基金资助项目(62101415) （62101415）
