Partial Inter-Relay Interference Cancellation in Two Path Successive Relay Network

This letter proposes a partial interference cancellation scheme to cancel the inter-relay interference (IRI) in two path successive relay (TPSR) network, where part of the IRI signals are retained at the destination node during the decoding process to improve the performance. Besides, to reduce the decoding complexity of the proposed scheme, the iteration maximal ratio combining (I-MRC) decoding algorithm is designed. Then, we analyse the diversity gain of the proposed scheme. The analysis and simulation results show that the proposed partial IRI cancellation scheme can improve the performance of the TPSR network and obtain extra diversity gain.