以HFC为基础的宽带综合业务接入网

Broadband integrated service access network based on HFC network

对宽带综合业务接入网——光纤同轴电缆混合网技术进行了综述,介绍了HFC网的结构、频谱分配策略,以及实现双向通信的技术关键。同时对双向HFC网存在的主要问题:上行通道噪声漏斗效应、各种噪声干扰控制策略、回波反射等进行了说明。

This paper presents a comprehensive survey on the broadband integrated service access network-Hybrid Fiber Coaxial Network,introduces its network architecture,spectrum allocation and technique for bidirec-tional communication.Finally,points out the main problems exists in the HFC network:noise funneling in the re-turn path;control tactics of noise;reflection in the cable.