TY - JOUR
T1 - On secrecy analysis of wireless-powered relaying FSO-RF systems
AU - Zhang, Jiliang
AU - He, Wanxin
AU - Pan, Gaofeng
AU - Xie, Yiyuan
N1 - KAUST Repository Item: Exported on 2021-07-12
PY - 2021/6/3
Y1 - 2021/6/3
N2 - We investigate the physical-layer security performance for a wireless-powered relaying mixed free-space optical-radio frequency (FSO-RF) system. In this system, a source transmits optical information to a relay (R), which decodes the received signal with a decode-and-forward protocol, converts it into an RF signal, and forwards it to a destination in the presence of an eavesdropper. Furthermore, we also assume that R has no extra power supply, and it only relies on harvesting energy from a power beacon to forward the information. Assuming that the FSO and all of the RF channels experience gamma-gamma and Rayleigh fading, the closed-form analytical expressions for secrecy outage probability and the probability of strictly positive secrecy capacity are derived. In addition, the effects of atmospheric turbulence, pointing errors, and detection techniques on the system performance are analyzed. Finally, we perform Monte Carlo simulations to verify the accuracy of the derived expressions.
AB - We investigate the physical-layer security performance for a wireless-powered relaying mixed free-space optical-radio frequency (FSO-RF) system. In this system, a source transmits optical information to a relay (R), which decodes the received signal with a decode-and-forward protocol, converts it into an RF signal, and forwards it to a destination in the presence of an eavesdropper. Furthermore, we also assume that R has no extra power supply, and it only relies on harvesting energy from a power beacon to forward the information. Assuming that the FSO and all of the RF channels experience gamma-gamma and Rayleigh fading, the closed-form analytical expressions for secrecy outage probability and the probability of strictly positive secrecy capacity are derived. In addition, the effects of atmospheric turbulence, pointing errors, and detection techniques on the system performance are analyzed. Finally, we perform Monte Carlo simulations to verify the accuracy of the derived expressions.
UR - http://hdl.handle.net/10754/670096
UR - https://www.spiedigitallibrary.org/journals/optical-engineering/volume-60/issue-06/066102/On-secrecy-analysis-of-wireless-powered-relaying-FSO-RF-systems/10.1117/1.OE.60.6.066102.full
UR - http://www.scopus.com/inward/record.url?scp=85109082635&partnerID=8YFLogxK
U2 - 10.1117/1.OE.60.6.066102
DO - 10.1117/1.OE.60.6.066102
M3 - Article
SN - 1560-2303
VL - 60
JO - Optical Engineering
JF - Optical Engineering
IS - 6
ER -