5G网络中异构无线网络和云架构研究  

Research on the heterogeneous wireless networks and cloud architecture in 5G networks

作　　者：董春利[1,2] 王莉 张晖[3] Dong Chunli;Wang Li;Zhang Hui(College of Electronic Information Engineering,Nanjing Communications Institute of Technology,Nanjing 211188,China;Shanghai Jian-Xi Information Technology Co.,Ltd.,Shanghai 200051,China;College of Information and Communication Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京交通职业技术学院电子信息工程学院,江苏南京211188 [2]上海剑曦信息科技有限公司,上海200051 [3]南京邮电大学信息与通信工程学院,江苏南京210003

出　　处：《无线互联科技》2018年第8期26-28,共3页Wireless Internet Technology

基　　金：南京交通职业技术学院高层次人才科研基金项目;项目编号:440105001

摘　　要：一种应对5G通信中无线流量爆炸的方法,是部署大量小蜂窝来生成异构无线网络(Het Nets)。Het Nets除传统的宏蜂窝外,其蜂窝由发射功率较低的小蜂窝组成。通过部署低功率小型基站,网络容量得到了改善,覆盖范围也扩大到覆盖漏洞。此外,所有小型、微微、毫微微蜂窝与现有宏蜂窝的重叠,导致频率复用的改善和有效性的提高。文章讨论了5G网络中Het Nets的现状,云无线接入网络(C-RAN)和异构C-RAN(H-CRAN),C-RAN的试验和H-CRAN的提案。To handle the wireless traffic explosion in 5G communication,is deployment of large number of small cells giving rise to Heterogeneous Networks(HetNets).HetNets are typically composed of small cells,having low transmission power,besides the legacy macrocells.By deploying low power small BS,the network capacity is improved and the coverage is extended to coverage holes.Moreover,the overlap of all small,pico,femto cells with the existing macro cells,leads to improved and efficient frequency reuse.The status of HetNets,the cloud radio access networks(C-RAN),the Heterogeneous H-CRAN,the trials in C-RAN and the H-CRAN proposals in 5G networks are discussed in this paper.

关 键 词：5G网络 异构无线网络 云无线接入网络 小型蜂窝接入 

分 类 号：TN929.5[电子电信—通信与信息系统]