Detection for two-way relay MIMO channels

We investigate virtual single user detection (VSUD) for physical network coding in two-way relay MIMO channels. We propose (non)-linear detection algorithms which are derived from maximum-likelihood (ML) structure. Simulation results show that VSUD with ML detection can achieve the best performance. VSUD with Euclidian distance based detection provide the same performance as multiple user detection with ML detection. And VSUD with the proposed linear detection outperforms MUD with MMSE detection.