Packet loss rate analysis of wireless sensor transmission with RF energy harvesting

Abstract

RF energy harvesting is a promising potential solution for providing convenient and perpetual energy supply to low-power wireless sensor networks. In this paper, we investigate the performance of overlaid wireless sensor transmission powered by RF energy harvesting from existing wireless system for delay sensitive traffic. We derive the exact closed-form expression for the distribution function of harvested energy over a certain number of coherence time over Rayleigh fading channels with the consideration of hardware limitation, such as energy harvesting sensitivity and efficiency. We further analyze the packet loss probability of sensor transmission subject to interference from existing system.