TY - JOUR
T1 - Secrecy Performance Analysis of RIS-aided Communication System with Randomly Flying Eavesdroppers
AU - Wei, Lai
AU - Wang, Kezhi
AU - Pan, Cunhua
AU - Elkashlan, Maged
N1 - Funding information: 10.13039/501100004543-China Scholarship Council.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - 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.
AB - 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.
KW - Antennas
KW - Distribution functions
KW - Eavesdropping
KW - Fading channels
KW - Physical layer security
KW - Poisson point process
KW - Random variables
KW - Signal to noise ratio
KW - Wireless communication
KW - reconfigurable intelligent surface
KW - unmanned aerial vehicles
UR - http://www.scopus.com/inward/record.url?scp=85136891425&partnerID=8YFLogxK
U2 - 10.1109/lwc.2022.3198631
DO - 10.1109/lwc.2022.3198631
M3 - Article
SN - 2162-2337
VL - 11
SP - 2240
EP - 2244
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 10
ER -