Physical Layer Secrecy of NOMA-Based Hybrid Satellite-Terrestrial Relay Networks

被引：7
作者：
Bankey, Vinay [1 ]
Singh, Vibhum [1 ]
Upadhyay, Prabhat K. [1 ]
机构：
[1] Indian Inst Technol Indore, Discipline Elect Engn, Indore 453552, Madhya Pradesh, India
来源：
2020 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) | 2020年
关键词：
Amplify-and-forward; HSTRN; NOMA; physical layer secrecy; secrecy outage probability; shadowed-Rician fading; NONORTHOGONAL MULTIPLE-ACCESS; MULTIUSER; SECURITY;
D O I：
10.1109/wcnc45663.2020.9120835
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we investigate the physical layer security of a non-orthogonal multiple access (NOMA) based downlink hybrid satellite-terrestrial relay network where the satellite communicates with terrestrial NOMA users in the presence of an eavesdropper via an amplify-and-forward relay. To analyze the secrecy performance of this network, we derive new closed-form expressions of secrecy outage probability (SOP) and the probability of positive secrecy capacity by adopting shadowed-Rician fading for the satellite link and Nakagami-m fading for terrestrial links. To get more insights, we further derive the closed-form expression for asymptotic SOP and illustrate the behavior of SOP at high signal-to-noise ratio regime. The analytical results are corroborated through Monte-Carlo simulations.
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页数：6
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