混合光纤同轴电缆网络中的MAC技术分析

The MAC Technique Used in HFC Networks

概述了目前在各种网络中应用的媒体访问控制(MAC)技术。分析了混合光纤同轴电缆(HFC)或纯有线电缆交互式全功能网络的特殊性,指出了它们为什么不能采用传统的MAC技术。重点介绍了DVB-RCC系统交互通道中采用的MAC技术,并把它们与DOCSIS系统中的MAC技术进行了比较。

This paper briefly introduces various Media Access Control(MAC)techniques used in present networks.It ex-plores the speciality of Hybrid-Fiber Coax(HFC)or all-coax based interactive full service networks,explains why legacy MAC techniques do not fit for this network.It gives the emphasis on the introduction about the MAC technique used in DVB-RCC(Return Channel for Cable),and the comparison with that used in the DOCSIS(Data Over Cable Service In-terface Specifications)system.