An iterative interference cancellation design and analysis for uplink cooperation among base stations

In this paper we propose an iterative interference cancellation scheme among base stations(BSs) for uplink cooperation transmission. For simplicity, we focus on a model with two BSs and two corresponding user equipments (UEs), and we derive the users selection criterion for successful interference cancellation(SIC). Our theoretic analysis shows that two round iterations are enough for distributed information exchange in order to achieve SIC. Furthermore, we design an iterative interference cancellation scheme for uplink cooperation. In this scheme, the BSs first select appropriate UEs according to users selection criterion, and BSs will allocate the same frequency band for both UEs. Then the cooperative BSs will iteratively cancel the interference from each other. Our simulation results prove the correctness of our derivation and analysis, and it also shows significant performance improvement compared with uncooperative communications.