基于解码转发CR-NOMA协同系统物理层安全性能分析  

Physical Layer Security Performance Analysis of Spectrum Sharing CR-NOMA System Based on Decode-and-Forward

作　　者：吕铄 嵇建波 LYU Shuo;JI Jianbo(School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China;School of Electronic Information and Automation,Guilin University of Aerospace Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学电子工程与自动化学院,广西桂林541004 [2]桂林航天工业学院电子信息与自动化学院,广西桂林541004

出　　处：《电讯技术》2024年第1期139-148,共10页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(61650103);广西自然科学基金项目(2018GXNSFAA281161)。

摘　　要：分析了认知无线电(Cognitive Radio,CR)非正交多址(Non-orthogonal Multiple Access,NOMA)网络中的物理层安全性能。考虑到现有窃听者,支持NOMA的CR通过Nakagami-m信道以解码转发协作模式传输数据。为了分析CR-NOMA物理层安全性能,通过连接中断概率和安全中断概率的闭式表达式来评估CR-NOMA的安全性能。此外,通过蒙特卡罗模拟仿真以验证推导出的分析结果,并深入分析了参数对系统性能的影响。The physical layer security(PLS)in cognitive radio(CR)networks based on non-orthogonal multiple access(NOMA)network is analyzed.Considering an existing eavesdropper,the NOMA-based CR transferes data with the decode-and-forward collaborative mode over Nakagami-m channel.To analyze the performance of NOMA-based CR networks in PLS perspective,the security performance is evaluated by the closed-form expressions for connection outage probability and secrecy outage probability.Furthermore,Monte Carlo simulations are provided to verify the derived analytical results and the impact of parameters on system performance is analyzed.

关 键 词：认知无线电 非正交多址接入 物理层安全性能 连接中断概率 安全中断概率 解码转发 

分 类 号：TN929.5[电子电信—通信与信息系统]