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针对目前的HFC的频带资源被大量闲置的问题,文章设计了一套基于HFC的VOD系统,此系统通过IP/QAM设备,将千兆网络带宽划分为24个8MHz的频道,从而实现通过HFC实施支持交互式与广播式等多种多媒体通信应用。文章介绍了基于HFC网络的VOD系统设计与实现方案。
Aiming at the problem that the current HFC band resources are largely idle, a HFC-based VOD system is designed. This system divides the gigabit network bandwidth into 24 channels of 8MHz through IP / QAM equipment so as to realize the HFC implementation Support for interactive and broadcast multi-media communication applications. The paper introduces the design and implementation of VOD system based on HFC network.