Inter-cell coordinated beamforming with opportunistic scheduling

This paper proposes a distributed coordination framework with opportunistic scheduling among the multiple users as opposed to the existing works on the multi-cell cooperative beamforming problem subject to a single active user in each cell. This framework deals with the best throughput trade-off between throughput gain by interference nulling, and opportunistic scheduling gain in a cellular MISO system. In this framework, multi-user scheduling and inter-cell coordination issues are jointly considered for improving the cell-edge throughput performance without compromising the overall system performance. Our simulation results have demonstrated that its performance can reach up to 85% of its upper bound at the cell boundary.