On outage probability of two-way relaying data transmission and energy harvesting

Abstract

This paper addresses accurate outage performances of a two-way relaying network with wireless power transfer. The wireless power transfer or energy harvesting is a well known scheme for reducing energy consumption of low power devices by harvesting energy received from high power equipments. In this work sources are considered high power equipments and relays are the low power devices. In this context, the signal to noise and power gain are obtained and used to accurately derive outage probability (OP) for a two-way relaying system in amplify-and-forward conguration, with energy harvesting at relays. The impact of energy harvesting period is shown for low-rate and high-rate regimes. This enabled the OP to join asymptotically a zero bound.