On the Secrecy Capacity of Fisher-Snedecor F Fading Channels
On the Secrecy Capacity of Fisher-Snedecor F Fading Channels
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DOI：
10.1109/wimob.2018.8589137
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
Osamah. S. Badarneh;P. C. Sofotasios;S. Muhaidat;S. Cotton;Khaled Maaiuf Rabie;N. Al-Dhahir
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文献类型：
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作者：
Osamah. S. Badarneh;P. C. Sofotasios;S. Muhaidat;S. Cotton;Khaled Maaiuf Rabie;N. Al-Dhahir
本文研究了经典Wyner窃听模型在Fisher-Snedecor复合衰落信道上的物理层安全性能。具体来说，假设主信道（即源和合法目标之间）和窃听者信道（即源和非法目标之间）经历独立的准静态Fisher-Snedecor衰落条件，这种情况已被证明在传统和新兴通信系统的实际无线传输场景中会遇到。在这种情况下，导出了平均保密能力（ASC）和非零保密能力（PNSC）概率的精确封闭表达式。此外，给出了ASC的渐近解析表达式。研究了阴影和多径衰落对保密性能的影响。结果表明，增加主信道的衰落参数和/或窃听者信道的阴影参数可以提高保密性能。将分析结果与蒙特卡罗模拟结果进行了比较，验证了分析结果的正确性。
The performance of physical-layer security of the classic Wyner’s wiretap model over Fisher-Snedecor composite fading channels is considered in this work. Specifically, $\mathcal{F}$ the main channel (i.e., between the source and the legitimate destination) and the eavesdropper’s channel (i.e., between the source and the illegitimate destination) are assumed to experience independent quasi-static Fisher-Snedecor fading conditions, which have been shown to be encountered in realistic wireless transmission scenarios in conventional and emerging communication systems. In this context, exact closed-form expressions for the average secrecy capacity (ASC) and the probability of non-zero secrecy capacity (PNSC) are derived. Additionally, an asymptotic analytical expression for the ASC is presented. The impact of shadowing and multipath fading on the secrecy performance is investigated. Our results show that increasing the fading parameter of the main channel and/or the shadowing parameter of the eavesdropper’s channel improves the secrecy performance. The analytical results are compared with Monte-Carlo simulations to validate the analysis.