System throughput and resource utilization can be
improved in ultra-dense networks (UDN) by deploying a large number of small
base stations. However, base stations are very close in UDN, which will cause
serious interference between base stations. To solve this problem, coordinated
multi-point (CoMP) has been improved, which has the ability to reduce inter-cell
interference and to improve data rate. However, the complexity of cooperation
among all cells is very high. Therefore, it is necessary to construct
small-size cooperation clusters. This article analyzes one of the key
challenges of CoMP application in UDN—optimal CoMP clustering. Firstly, the
background knowledge of CoMP is introduced. Secondly, we focus on the
classification and summarization of the latest achievements in clustering
research and the objective and challenges faced in the design of CoMP clusters.
Finally, the future research directions and potential methods of CoMP
clustering are discussed.
Cite this paper
Li, Q. , Xu, Y. and Tian, X. (2018). Overview of CoMP Clustering in UDN. Open Access Library Journal, 5, e4703. doi: http://dx.doi.org/10.4236/oalib.1104703.
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