基于C-RAN的BBU-RRH的动态调度方案设计  

Design of BBU-RRH dynamic scheduling scheme based on C-RAN

作　　者：许青 姚建国[1] Xu Qing;Yao Jianguo(College of Telecommunications Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China)

机构地区：[1]南京邮电大学信息与通信工程学院,江苏南京210003

出　　处：《微型机与应用》2017年第24期80-83,共4页Microcomputer & Its Applications

摘　　要：在云接入网络(Cloud Radio Access Network,C-RAN)架构中,传统的基站分为基带处理单元(Base Band Unit,BBU)和射频拉远头(Remote Radio Head,RRH),所有的RRH分布在远程站点共享运行在云中心的BBU资源池。现有的方案考虑的RRH只能将数据传输到唯一归属的BBU上,导致不同的BBU之间不能共享数据。提出了一种基于C-RAN的BBU-RRH的动态调度方案(DSSC),BBU间通过借用资源的方式动态地给RRH分配资源。仿真结果表明,本文提出的方案可以有效地提高系统的吞吐量和频谱效率,减少了资源的浪费。In the Cloud Radio Access Network （C-RAN） architecture, the traditional base station is divided into BaseBand Units （BBUs） and remote radio heads（ RRHs）. All RRHs are distributed in the remote site to share the BBU resource pool running in the Cloud center. Existing researchs consider RRH can only transfer data to the only attributable BBU, resulting in data not to be shared between different BBUs. This pa- per presents a BBU-RRH dynamic scheduling scheme based on C-RAN （DSSC） , in which BBU can dynamically allocate resources to the RRH through the use of resources. The simulation results show that the proposed scheme can improve the throughput and spectrum efficiency of the system effectively and reduce the waste of resources.

关 键 词：云无线接入网络 资源分配 集中管理 

分 类 号：TN929.53[电子电信—通信与信息系统]