quotation:		[Copy]
		[Copy]

This Paper:Browse 260 Download 140
STAR-RIS 辅助的安全 MIMO 系统的最大最小安全速率优化(英文)
黄晋浩,缪玲,索龙,周雯
0 Fontlarge +\|Default\|Small
(1. 南京林业大学 a. 信息科学技术学院、人工智能学院;b. 艺术设计学院，南京 210037;2. 新罗大学现代艺术学院，韩国釜山 46958;3. 广州航海学院低空装备与智能控制学院，广州 510725;3. 广州航海学院低空装备与智能控制学院，广州 510726;3. 广州航海学院低空装备与智能控制学院，广州 510727;3. 广州航海学院低空装备与智能控制学院，广州 510728)

摘要:

可同时透射和反射的可重构智能表面(Simultaneous Transmitting and Reflecting Reconfigurable Intelligent Surface,STARRIS)能够独立调整表面单元的透射和反射系数，从而实现全空间覆盖。针对包含了STARRIS、基站(Base Station,BS)、单个窃听者和多个合法用户的多输入多输出(Multiple Input MultipleOutput,MIMO)通信系统，研究系统安全速率的优化问题。通过对发射端功率分配系数、STARRIS的透射与反射系数矩阵进行联合设计，最大化了系统的最差可达安全速率(Achievable Security Data Rate,ASDR)。由于该问题是非凸的且不易求解，因此设计了一种基于粒子群优化(Particle Swarm Optimization)的联合优化算法来解决这个难题，同时考虑STARRIS处于连续相位和离散相位的两种情况。仿真结果证明了所提算法的有效性，并体现了其在MIMO多用户系统中使用STARRIS的显著优势。

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

DOI：10.20079/j.issn.1001-893x.240510002

基金项目:

Max-Min Security Rate Optimization in STAR-RIS Aided Secure MIMO Systems

HUANG Jinhao,MIAO Ling,SUO Long,ZHOU Wen

(1a.College of Information and Science & Artificial Intelligence;1b.College of Art and Design,Nanjing Forestry University,Nanjing 210037,China;2.Department of Modern Art,Silla University,Busan 46958,the Republic of Korea;3.School of Low-Altitude Equipment and Intelligent Control,Guangzhou Maritime Institute，Guangzhou 510725,China;1a.College of Information and Science & Artificial Intelligence;1b.College of Art and Design,Nanjing Forestry University,Nanjing 210037,China;2.Department of Modern Art,Silla University,Busan 46958,the Republic of Korea;3.School of Low-Altitude Equipment and Intelligent Control,Guangzhou Maritime Institute，Guangzhou 510726,China;1a.College of Information and Science & Artificial Intelligence;1b.College of Art and Design,Nanjing Forestry University,Nanjing 210037,China;2.Department of Modern Art,Silla University,Busan 46958,the Republic of Korea;3.School of Low-Altitude Equipment and Intelligent Control,Guangzhou Maritime Institute，Guangzhou 510727,China;1a.College of Information and Science & Artificial Intelligence;1b.College of Art and Design,Nanjing Forestry University,Nanjing 210037,China;2.Department of Modern Art,Silla University,Busan 46958,the Republic of Korea;3.School of Low-Altitude Equipment and Intelligent Control,Guangzhou Maritime Institute，Guangzhou 510728,China)

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.

Key words: multiple-input multiple-output(MIMO) reflecting reconfigurable intelligent surface(STAR-RIS) particle swarm optimization(PSO) max-min security rate optimization