Dense small cells have been considered as a promising solution for improving system throughput in 5G networks. When a large number of small cells are overlapped, serious inter-cell interference (ICI) becomes one of the major technical challenges. Coordinated multi-point (CoMP) is an effective technology to mitigate ICI. In this paper, we study affinity propagation based CoMP cluster for dense small cell networks with backhaul constrains. The graph based static clusters and affinity propagation based clusters are formed so as to achieve good performance and reduce complexity. By taking into account the hybrid CoMP mode, the optimal problem which maximizes the system throughput with the limit-capacity backhaul has been formulated. An effective hybrid CoMP cluster strategy is gained by solving the optimal problem. The simulation results demonstrate that the proposed scheme could enhance average throughput.
Wireless Personal Communications – Springer Journals
Published: Sep 2, 2017
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