Wideband dynamic base station selection for downlink coordinated multipoint system

Abstract

One of the major goals we try to achieve in Long Term Evolution Advanced (LTE-A) is to support higher downlink peak and average cell throughput than LTE Release 8. As one of the promising technologies targeting to the goal, coordinated multipoint transmission/reception (CoMP) is a major topic being discussed recently. CoMP technique significantly mitigates the co-channel interference and thus increases the cell-edge user throughput. In this paper, we propose a novel transmission scheme named wideband dynamic base station selection to further improve the performance of CoMP system. We compare the proposed scheme with the existing joint transmission (CoMP-JT) and coordinated beam-forming (CoMP-CBF) transmission schemes. The simulation results present that the proposed scheme has a good trade-off between the backhaul overhead and system performance.