A bandwidth-efficient cooperative relaying scheme with hard interference cancellation and iterative decoding

We propose a coded cooperative relaying scheme in which all successfully decoded signals from multiple users are forwarded simultaneously by a multi-antenna relay to a common multi-antenna destination to increase bandwidth efficiency. To decode user information, the destination performs hard interference cancellation in accompany with iterative decoding. Simulation results show that the proposed scheme significantly outperforms direct transmission under the same transmit power and bandwidth efficiency.