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1·This paper analyzes the network structure of the hybrid fiber coax, such as star form network, tree form network, star tree form network and annular network.

分析了混合光纤同轴网的几种组网方式，如星形网、树形网、星树形网和环形网。

2·Data Over Cable Service Interface Specification (DOCSIS) is an industry standard developed for broadband access applications of high speed multimedia via Hybrid Fiber Coax (HFC).

有线电缆数据服务传输规范(DOCSIS)是为基于光纤同轴混合网(hfc)的宽带多媒体接入应用而开发的工业标准。

3·This paper introduces the composing principle of the hybrid fiber coax, and analyzes the technology characteristics, such as frequency arrange, index division, transmission form etc.

介绍了混合光纤同轴网的组成及工作 原理 ，分析了其频谱安排、指标分配、传输模式等。

4·It explores 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.

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。

5·Alot of noises accumulate on the upstream channel in HFC (Hybrid Fiber-Coax) system, which caused the difficulty in bi directional operations, Therefore, suppressing them is very difficult.

HFC上行通路汇集了大量的各类噪声，严重影响着其双向业务的开通，如何对这些噪声进行抑制是个难题。