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.
@article{arxiv.2208.07744,
title = {Secrecy Performance Analysis of RIS-aided Communication System with Randomly Flying Eavesdroppers},
author = {Lai Wei and Kezhi Wang and Cunhua Pan and Maged Elkashlan},
journal= {arXiv preprint arXiv:2208.07744},
year = {2022}
}
Comments
Accepted by IEEE Wireless Communications Letters (WCL)