瑞利/瑞利衰落信道的物理层保密性能

Dac-Binh Ha, T. Duong, Duc-Dung Tran, H. Zepernick, T. T. Vũ
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引用次数: 16

摘要

在本文中,我们研究了单输入单输出系统的物理层保密性能,该系统由单天线设备组成,并在不同衰落信道上存在单天线无源窃听器。我们特别考虑了两种不同衰落信道安排的情况:合法/非法信道分别受到瑞利/瑞利衰落的影响;合法频道和非法频道分别受到瑞利衰落的影响。具体地说,利用信噪比的统计特征,导出了非零保密能力存在的概率和保密中断概率的解析表达式。为说明所开发的解析表达式的应用,给出了选定场景的数值结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Physical layer secrecy performance over Rayleigh/Rician fading channels
In this paper, we investigate the physical layer secrecy performance of a single-input single-output system that consists of single antenna devices and operates in the presence of a single antenna passive eavesdropper over dissimilar fading channels. In particular, we consider two scenarios in terms of dissimilar fading channel arrangements: the legal/illegal channels are subject to Rayleigh/Rician fading, respectively; and the legal/illegal channels are subject to Rician/Rayleigh fading, respectively. Specifically, analytical expressions for the probability of the existence of a non-zero secrecy capacity and the secrecy outage probability are derived by using statistical characteristics of the signal-to-noise ratio. Numerical results are provided for selected scenarios to illustrate applications of the developed analytical expressions.
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