C-RAN网络中CoMP性能分析与优化

CoMP Performance Analysis and Optimization in C-RAN Network

针对无线通信中的能耗巨大和移动用户潮汐现象带来的基站利用率低下问题,C-RAN作为一种基于集中化处理、协作式无线电和实时云计算架构的无线接入网架构,是一种低成本、高性能的解决方案。针对C-RAN网络中的CoMP性能,通过计算无线链路损耗分析了JT下的CoMP的理论增益。针对C-RAN网络规划设计问题,定性分析了CoMP增益与C-RAN网络Cell数的比例关系,最后结合仿真结果给出了合理的网络规划设计建议,且理论证明其能够很好地解决移动运营商所面临的上述挑战。

In response to the huge energy consumption in wireless communications and the low utilization of basestations caused by the tide of mobile users,C-RAN is used as a low-cost wireless access network architecture based on centrlized processing,collaberative radio,and real-time cloud computing architecture.Aiming at the CoMP performance in C-RAN network,the theoretical gain of CoMP under JT is analyzed by calculating the radio link loss.And aiming at C-RAN planning and design problem,the qualitative analysis of the proportional relationship between the CoMP gain and the number of cells in the C-RAN network is done,and finally the reasonable network planning and design recommendations based on simulation results are given,and the theory proves that it can solve the above-mentioned challenges faced by mobile operators.