Secrecy Performance of Energy Harvesting Wireless Networks in the Presence of Multiple Eavesdroppers

This paper investigates the physical layer secrecy performance of radio frequency energy harvesting wireless networks over Rayleigh fading channels. The considered RF-EH system consists of a power transfer station, a source and a destination in the presence of multiple passive eavesdroppers. By using statistical characteristics of the signal-to-noise ratio (SNR), the exact closed-form expressions of existence probability of secrecy capacity is derived. Finally, simulation results are provided to confirm the correctness of our calculation.