信息安全研究2025，Vol.11Issue(3)：275-281,7.DOI:10.12379/j.issn.2096-1057.2025.03.10
基于DC规划的CR-NOMA系统物理层安全研究
Research on Physical Layer Security of CR-NOMA System Based on DC Programming
摘要
Abstract
A physical layer security scheme for CR-NOMA systems based on DC(difference of convex)function planning is proposed to address the communication security issues caused by the openness of CR-NOMA systems.In the NOMA(non-orthogonal multiple access)communication scenario,construct a multi-user eavesdropping channel model derive the security and rate expressions for the CR-NOMA system;And design a DC-based carrier power allocation algorithm to solve the optimal solution for sub-channel power allocation and improve the security of system subcarriers.The simulation results show that without increasing the power of the base station,its SSR is improved by 35％and 10％,respectively,compared to OFDMA and NOMA;Under the same SSR,the maximum number of users can increase by 200％.Verified that the scheme can effectively enhance the physical layer security of the system.关键词
认知无线电网络/物理层安全/非正交多址/信息安全/资源分配Key words
cognitive radio networks/physical layer security/non-orthogonal multiple access/information security/resource allocation分类
信息技术与安全科学引用本文复制引用
张永棠..基于DC规划的CR-NOMA系统物理层安全研究[J].信息安全研究,2025,11(3):275-281,7.基金项目
国家自然科学基金项目(61663029) （61663029）
广东省高校重点领域专项(高端装备制造)项目(2022ZDZX3038) （高端装备制造）
