Outage-Performance for Power Beacon-Assisted Wireless Powered Cooperative Communications

To move towards next generation of green communications, we study a power beacon (PB) assisted wireless powered cooperative communication network (PB-WPCCN). We propose a new system model with a source and a number of candidate relays that are not directly connected to the power grid. System harvests energy from RF broadcast signals radiated from PB, and works cooperatively to successful deliver information to the target device through relay network. System executes this process in two stages relay selection decode then forward, namely, (2SRS-DF). First of all, select a group of relay candidates who can successfully decode the received signal from the source. Secondly, choose the best relay with the capability to forward the decoded message to the destination from the group which successfully decodes the source signal in the first stage. The closed-form expression for the average outage probability and the throughput of the proposed system is derived and presented. We validate the theoretical results by numerical simulations. The impact of position and number of relay terminals along with time allocation parameters are also studied.