一种适用于广电双向改造的EoC MAC协议  

CCAS-MAC:A new MAC for CATV access network

作　　者：陆荣[1,2] 雷加[1] 吴斌[2] 

机构地区：[1]桂林电子科技大学电子工程学院,桂林541004 [2]中国科学院微电子研究所,北京100029

出　　处：《电子测量技术》2009年第4期118-121,共4页Electronic Measurement Technology

基　　金：中国科学院知识创新工程领域前沿项目(5408SF032001)

摘　　要：作为"数字电视网"的基础,有线电视网的双向化改造既是有线网络数字化的前提,又是有线电视网络走向"三网融合"的必经之路。针对有线电视网双向化改造工程,本文深入分析了我国有线电视网双向化改造的总体需求,提出了一种基于CCAS规范的EoCMAC协议;重点介绍了CCASMAC协议的层次架构和采用的关键技术,并给出了MAC协议的实现方案;最后介绍了自主设计开发的硬件板级验证平台。CCASMAC协议为EPON+EoC的双向改造模式的实施提供了更多的支持与选择。As the basis of Digital Cable Television Network, the bi-directional reconstruction engineering of CATV Access Network is one of the prerequisites of Cable Network digitalization, as well as one of the technical difficulties of Convergence of the three networks. In this paper, the general requirements of the bi-directional reconstruction engineering in China are deeply analyzed. And a new MAC protocol of EoC, which is based on CCAS, is presented. The protocol architecture and the critical technologies of CCAS MAC are introduced, and an implementation scheme of MAC Hardware portion is put forward. In the end, a hardware board-level verification platform independently designed is introduced. More supports and choices are offered for the implementation of the EPON-/-EoC pattern of the bi-directional reconstruction engineering, with the help of CCAS MAC protocol.

关 键 词：双向改造 接入网 EOC CCAS 介质访问控制 

分 类 号：TN913[电子电信—通信与信息系统]