电讯技术2025，Vol.65Issue(2)：302-312,11.DOI:10.20079/j.issn.1001-893x.231101002
硬件损伤下RIS辅助RSMA系统最小安全速率最大化方案
Max-Min Secure Rate for RIS-aided RSMA Systems with Hardware Impairments
摘要
Abstract
The hardware impairments(HIs)in the transceiver significantly degrade the security performance of the reconfigurable intelligent surfaces(RIS)-aided rate splitting multiple access(RSMA)systems.To address this issue,an optimized scheme is proposed to maximize the minimum secure rate in HIs-affected RIS-aided RSMA systems,aiming to improve the efficiency of transmission resource utilization and the user's secure rate fairness.The optimization is performed by using convex optimization techniques such as alternating optimization,auxiliary variable substitution,semidefinite program and semidefinite relaxation,which jointly optimize the transmit precoding vectors,secure rate allocation for common information,and RIS phase shifts to maximize the user's minimum secure rate.Simulation results demonstrate that,compared with the RIS-aided SDMA scheme,the proposed scheme can increase a minimum of 5.65%of the minimum security rate under the same His case,and can improve the system's His resistance and secrecy performance while guaranteeing the user's secure rate fairness.关键词
速率拆分多址接入(RSMA)/可重构智能表面(RIS)/硬件损伤/保密速率公平性/物理层安全Key words
rate splitting multiple access(RSMA)/reconfigurable intelligent surface(RIS)/hardware impairments/secure rate fairness/physical layer security分类
信息技术与安全科学引用本文复制引用
邓炳光,伍志攀,冯琳琳,张治中..硬件损伤下RIS辅助RSMA系统最小安全速率最大化方案[J].电讯技术,2025,65(2):302-312,11.基金项目
国家自然科学基金资助项目(61831002,61901075) （61831002,61901075）
