基于集中式架构的无线接入网优化部署研究  

Research on optimized deployment of radio access network based on centralized architecture

作　　者：张宗帅 田霖 石晶林 徐顺清[1,2,3,4] Zhang Zongshuai;Tian Lin;Shi Jinglin;Xu Shunqing(Beijing Key Laboratory of Mobile Computing and Pervasive Device,Beijing 100190;Wireless Communication Technology Research Center,Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190;University of Chinese Academy of Sciences,Beijing 100049;Samsung Research Institute China-Beijing(SRC-B),Beijing 100028)

机构地区：[1]移动计算与新型终端北京市重点实验室,北京100190 [2]中国科学院计算技术研究所无线通信技术研究中心,北京100190 [3]中国科学院大学,北京100049 [4]中国三星研究院,北京100028

出　　处：《高技术通讯》2019年第12期1175-1183,共9页Chinese High Technology Letters

基　　金：国家自然科学基金(61431001);国家科技重大专项(2018ZX03001017)资助项目

摘　　要：基于集中式架构的无线接入网通过资源池共享处理资源,与基于分布式架构的无线接入网相比,明显减少了网络所需的处理资源,该性能可以通过统计复用增益(SMG)来评估。本文建立了基于时-空联合流量分布的处理资源SMG模型,并推导出SMG的闭合表达式。在此基础上,综合考虑集中式架构网络部署的处理资源池、远端射频单元(RRH)及光纤的成本,建立了无线接入网基站主设备部署成本模型,并进行成本分析。仿真结果表明,SMG随着服务阈值比Pth的增大而增大。当采用集中式架构部署的小区占比η固定时,总成本TC随着成本因子CF的增大而减小。当成本因子CF固定时,总成本TC随着η的变化趋势取决于成本因子CF的取值大小。本文的研究为基于集中式架构的无线接入网部署提供了理论指导,具有实际应用价值。The centralized architecture radio access network shares processing resources through resource pools,and significantly reduces the processing resources required by the network compared to traditional distributed architecture radio access network.This performance can be evaluated by statistical multiplexing gain(SMG).In this paper,a SMG model based on spatial-temporal joint traffic distribution resource is established,and the closed expression of SMG is derived.On this basis,considering the cost of the processing resource pool,remote radio head(RRH)and fiber of the centralized architecture network deployment,the cost model of the base station primary equipment deployment of the radio access is established and cost analysis is carried out.The simulation results show that the SMG increases with the increase of the service threshold.When the proportion of cells deployed in the centralized architecture is fixed,the total deployment cost decreases as the cost factor increases.When the cost factor is fixed,the trend of total cost varies depending on the value of the cost factor.The analysis and research carried out in this work provides theoretical guidance for the wireless access network engineering practice and network deployment based on centralized architecture,and has good practical application value.

关 键 词：集中式架构 无线接入网 统计复用增益(SMG) 优化部署 

分 类 号：TN9[电子电信—信息与通信工程]