论文标题
RIS辅助的物理层安全性改进了底层认知无线网络
RIS-Aided Physical Layer Security Improvement in Underlay Cognitive Radio Networks
论文作者
论文摘要
在本文中，研究了可重构的智能表面（RIS）辅助底层认知无线网络。 RI用于提高辅助网络（SN）的可靠性和鲁棒性，同时提高主要网络（PN）的物理层安全性。为此，得出了SN中断概率，PN保密概率和非零保密能力的PN概率的闭合性表达式。为了增加PN的窃听信号，窃听器使用两种组合技术，即最大比率组合和选择组合。此外，通过数值和仿真结果验证了所提出的系统模型的优势。
In this paper, a reconfigurable intelligent surface (RIS)-aided underlay cognitive radio network is investigated. An RIS is utilized to improve the secondary network (SN) reliability and robustness while simultaneously increasing the physical layer security of the primary network (PN). Toward this end, closedform expressions for the SN outage probability, PN secrecy outage probability, and PN probability of non-zero secrecy capacity are derived. To increase the eavesdropping signals of the PN, the eavesdropper uses two combining techniques, namely maximal ratio combining and selection combining. Furthermore, the advantages of the proposed system model are verified through numerical and simulation results.
