Distributed Power Allocation in MIMO Interference Relay Networks with Direct Links via ADMM

Consider a two-hop interference relay network with K multi-antenna transmitters and receivers, and a single multi-antenna relay. The relay employs amplify-and-forward (AF) strategy. The direct links between transmitters and receivers are assumed to be present. A distributed power allocation scheme is sought via the alternating direction method of multipliers (ADMM) algorithm at the transmitters under individual transmit power constraint to...