HFC双向网络中CM宽带接入技术研究与实现  

The Study and Application of CM Broadband Access Technology in HFC Bidirectional Network

作　　者：杨宗德[1] 任少华[2] 

机构地区：[1]成都东软信息技术学院,四川都江堰611844 [2]四川大学,四川成都610064

出　　处：《中国有线电视》2005年第5期443-446,共4页China Digital Cable TV

摘　　要：CableModem接入技术是当前实现“三网合一”和解决信息高速公路“最后 1km”高速宽带接入技术的最佳解决方案之一。详细介绍了当前HFC网络中CableModem接入技术的理论基础———DOC-SIS协议标准,提出了交互式HFC双向网络中的CableModem接入技术解决方案,设计、制作并调试了以TMS320C5402,AD9853和AD8348为核心,符合ITU-T协议标准的全双工CableModem。CM network access technology is the key method to integrate the PSTN, CATV and computer network into one network, it is also one of the best solutions for the last mile of the broadband access technology. This paper introduces the theoretical basis of cable modem technology in current HFC network—DOCSIS standard in detail. Then we present the solution for the cable modem network access technology of the bidirectional hybrid-fiber coax network. Finally, according to the ITU-T protocols, we have designed and debugged the full duplex CM, based on the TMS320C5402, AD9853 and AD8348.

关 键 词：电缆调制解调器 光纤/同轴电缆混合网 DSP DOCSIS 

分 类 号：TN943.6[电子电信—信号与信息处理]