On Secrecy Performance of SWIPT Energy-Harvesting Relay Jamming Based Mixed RF-FSO Systems

This paper proposes a simultaneous wireless information and power transfer (SWIPT) energy-harvesting relay jamming based mixed RF/FSO system, studies its security performance optimization in the presence of an eavesdropper. In this work, RF FSO channels experience Nakagami-m fading distribution Málaga(M) turbulence, respectively. A two-hop decode-and-forward (DF) is presented effect pointing errors considered. The nearby single antenna eavesdropper that attempts to eavesdrop on transmission also modeled. order prevent eavesdropping, introduces SWIPT structure control delivery energy recharging. closed expressions secrecy outage probability (SOP) average capacity (ASC) system are derived for above model. addition, closed-form expression asymptotic results SOP ASC when signal-to-noise ratios at legitimate destinations tend infinity. correctness these verified using Monte Carlo method. influence various key factors safety analyzed by simulations. show considerably improved under good weather conditions as well increasing signal-interference noise ratio, number interferer antennas, factor conversion efficiency. study provides new theoretical basis evaluating physical layer system.