In this paper, we investigate the full-duplex power beacon-assisted energy harvesting relay network in the power splitting protocol. The proposed system model consists of a Source node (S), a Relay node (R), a Destination node (D) and a Power-assisted beacon node (PB). In this model, S first harvests energy from PB in the downlink (DL) and then uses the harvested energy to transmit information to D via helping R in the power splitting protocol. Firstly, the analytical expressions of the system performance are proposed and derived. After that, the analytical results are also demonstrated and convinced by using Monte-Carlo simulation. The numerical results demonstrated and convinced the analytical and the simulation results are matched well with each other in connection with all system parameters. Keywords-Full-duplex, Power-assisted beacon (PB) throughput, outage probability, wireless energy harvesting (EH).