Precoding design in two-way cooperative system with energy harvesting relay

摘要

We consider a two-way relay network (TWRN) where one relay simultaneously harvest radio frequency (RF) energy emitted from both source nodes and forward the message for both sources. We proposed a recursive algorithm to design the precoding at the relay, including a phase rotating factor to combine the receive signal coherently, the precodin matrix and power splitting factors to maximize the achievable sum-rate. Simulation results show that the proposed scheme is able to improve the throughput of the TWRN.