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| In this paper, we consider a communication system with N base stations, each of which is equipped with M antennas in distributed way, supporting data traffic to K user terminals, each of which is equipped with one antenna. An efficient suboptimum algorithm is proposed for selecting users and antennas to form coordinated transmission/reception (CoMP) groups, which can improve the system performance significantly, especially the performance of cell-edge users. The scheme includes two steps: the selection of antennas groups and the selection of CoMP groups. The first step focuses on clustering antennas with high similarity, while the second step is accomplished by using project matrix which considers both the strength and the orthogonality of receive signals. Simulation results have shown the effectiveness of the proposed scheme. |
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| Keywords:MIMO; user selection; antennas selection; CoMP cluster |
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