论文标题
DF继电器中有关PHY安全性的一些讨论
Some Discussions on PHY Security in DF Relay
论文作者
论文摘要
讨论了解码和前向（DF）继电器系统中的物理层（PHY）安全性。基于窃听链接的类型，分析了三种典型的安全DF继电器模型的保密性能。与该领域的常规作品不同，从信息理论的角度提供了保密渠道容量的严格推导。同时，得出封闭式表达式以表征保密中断概率（SOP）。为了揭开更多的系统见解，在SOP上进行了渐近分析，以达到足够大的信噪比（SNR）。分析结果通过计算机模拟验证，并且非常同意。
Physical layer (PHY) security in decode-and-forward (DF) relay systems is discussed. Based on the types of wiretap links, the secrecy performance of three typical secure DF relay models is analyzed. Different from conventional works in this field, rigorous derivations of the secrecy channel capacity are provided from an information-theoretic perspective. Meanwhile, closed-form expressions are derived to characterize the secrecy outage probability (SOP). For the sake of unveiling more system insights, asymptotic analyses are performed on the SOP for a sufficiently large signal-to-noise ratio (SNR). The analytical results are validated by computer simulations and are in excellent agreement.
