STAR-RIS辅助的NOMA系统物理层安全性能优化
Performance optimization of physical layer security in STAR-RIS aided NOMA system
摘要
Abstract
The strong coupling characteristics of the imperfect channel state information and the imperfect successive in-terference cancellation makes it faces the great challenge in evaluating the secure performance accurately for the simulta-neously transmitting and reflecting reconfigurable intelligent surface(STAR-RIS)aided non-orthogonal multiple access(NOMA)transmission systems.To address this issue,a mixed algorithm based on penalty dual decomposition(PDD)and block coordinate descent(BCD)was proposed for optimizing the beamforming vectors at the base station and the phase-shift coefficients of the STAR-RIS jointly,aiming to maximize the minimum secure transmission rate of the sys-tem.The results demonstrate that minimum secure transmission rate can be significantly enhanced by the proposed mixed algorithm compared to that by BCD algorithm,achieving the performance improvement by at least 10%.关键词
可同时反射和透射的可重构智能超表面/非正交多址接入/物理层安全/块坐标下降/惩罚对偶分解Key words
simultaneously transmitting and reflecting reconfigurable intelligent surface/non-orthgonal multiple access/physical layer security/block coordinate descent/penalty dual decomposition分类
信息技术与安全科学引用本文复制引用
李美玲,王玉旻,王思敬,张海君..STAR-RIS辅助的NOMA系统物理层安全性能优化[J].通信学报,2024,45(5):214-225,12.基金项目
国家自然科学基金资助项目(No.62001320) （No.62001320）
山西省科技创新人才团队专项计划基金资助项目(No.202304051001035) （No.202304051001035）
山西省科技成果转化引导专项计划基金资助项目(No.202204021301055) （No.202204021301055）
山西省专利转化专项计划基金资助项目(No.202302003) （No.202302003）
山西省留学回国人员科研基金资助项目(No.2021-133) （No.2021-133）
山西省科研实践创新类基金资助项目(No.2023KY647) The National Natural Science Foundation of China(No.62001320),The Special Fund for Science and Technol-ogy Innovation Teams of Shanxi Province(No.202304051001035),The Science and Technology Achievement Transformation Guid-ance Special Project of Shanxi Province(No.202204021301055),The Project for Patent Transformation of Shanxi Province(No.202302003),The Research Project Supported by Shanxi Scholarship Council of China(No.2021-133),The Graduate Education Innovation Project of Shanxi Province(No.2023KY647) （No.2023KY647）
