| 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。 |
| 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 |
| DOI：10.20079/j.issn.1001-893x.220528001 |
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| 基金项目:国家自然科学基金资助项目（61650103）；广西自然科学基金项目（2018GXNSFAA281161） |
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| Physical Layer Security Performance Analysis of Spectrum Sharing CR-NOMA System Based on Decode-and-Forward |
| LYU Shuo,JI Jianbo |
| (1.School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China;2.School of Electronic Information and Automation,Guilin University of Aerospace Technology,Guilin 541004,China) |
| Abstract: |
| 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. |
| Key words: cognitive radio non-orthogonal multiple access physical layer security performance connection outage probability secrecy outage probability decode-and-forward |
