电子学报2024，Vol.52Issue(12)：4002-4008,7.DOI:10.12263/DZXB.20231098
STAR-RIS辅助的CR-SWIPT系统安全波束成形算法
Secure Beamforming Algorithm for STAR-RIS Assisted Cognitive Radio Systems with SWIPT
摘要
Abstract
To solve the problems of information transmission security caused by the dynamic openness of cognitive radio(CR),a beamforming optimization algorithm is proposed for STAR-RIS assisted CR system.Considering the con-straints such as the transmit power of cognitive base station(CBS)and SU energy harvesting,variables such as SU power splitting(PS)coefficients are jointly optimized to maximize the SU worst secrecy rate.It is transformed into a convex prob-lem by the SCA algorithm,and the coupling variables are solved by the SDR algorithm.The simulation results show that the proposed optimization algorithm has higher SU secrecy rate compared with others,and the introduction of artificial noise(AN)can further improve the security of the system.关键词
同时透射和反射的可重构智能表面/认知无线电/无线携能通信/物理层安全/保密率Key words
simultaneously transmitting and reflecting reconfigurable intelligent surface/cognitive radio/simultane-ous wireless information and power transfer/physical layer security/secrecy rate分类
信息技术与安全科学引用本文复制引用
李国权,胡航,王玥涛,谢宗霖,林金朝..STAR-RIS辅助的CR-SWIPT系统安全波束成形算法[J].电子学报,2024,52(12):4002-4008,7.基金项目
国家自然科学基金(No.U21A20447) （No.U21A20447）
重庆市自然科学基金(No.cstc2020jcyj-cxttX0002,No.CSTB2023NSCQ-LZX0105) National Natural Science Foundation of China(No.U21A20447) （No.cstc2020jcyj-cxttX0002,No.CSTB2023NSCQ-LZX0105）
Natural Science Foundation of Chongqing(No.cstc2020jcyj-cxttX0002,No.CSTB2023NSCQ-LZX0105) （No.cstc2020jcyj-cxttX0002,No.CSTB2023NSCQ-LZX0105）
