Secrecy Performance Analysis of RIS-Aided Communication System With Randomly Flying Eavesdroppers

被引：29

作者：

Wei, Lai ^{[1
,2
]}

Wang, Kezhi ^{[3
]}

Pan, Cunhua ^{[4
]}

Elkashlan, Maged ^{[2
]}

机构：

[1] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

[2] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London E1 4NS, England

[3] Northumbria Univ, Dept Comp & Informat Sci, Newcastle Upon Tyne NE2 1XE, Tyne & Wear, England

[4] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2022年 / 11卷 / 10期

关键词：

Wireless communication; Signal to noise ratio; Random variables; Fading channels; Antennas; Eavesdropping; Distribution functions; Physical layer security; unmanned aerial vehicles; reconfigurable intelligent surface; Poisson point process;

D O I：

10.1109/LWC.2022.3198631

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 letter, we analyze the secrecy performance of a reconfigurable intelligent surface (RIS)-aided communication system with spatially random unmanned aerial vehicles (UAVs) acting as eavesdroppers. We consider the scenarios where the base station (BS) is equipped with single and multiple antennas. The signal-to-noise ratios (SNRs) of the legitimate user and the eavesdroppers are derived analytically and approximated through a computationally effective method. The ergodic secrecy capacity is approximated and derived in closed-form expressions. Simulation results validate the accuracy of the analytical and approximate expressions and show the security-enhanced effect of the deployment of the RIS.

引用

页码：2240 / 2244

页数：5

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