基于PFTTH的双向有线电视网络研究  

Research of bidirectional cable TV network based on the PFTTH

作　　者：胡阳[1] 樊强[1] 张军[1] 

机构地区：[1]国网电力科学研究院,江苏南京210003

出　　处：《中国电子商情（通信市场）》2011年第6期262-268,共7页

摘　　要：针对有线电视网络的双向化改造问题，首先介绍了广电网络现状及当前有线电视网络双向改造的三种主要方案，并对各种方案进行了分析比较，最后给出了基于PFTTH实现双向数字电视网络的方案，方案将单向广播业务与下行点播业务承载在原有的广电HFC网络上，而控制信息、增值业务、EPG则通过EPON系统传输。方案降低了下行视频业务对EPON系统的冲击，不仅满足了广电双向网络双向交互、大容量、多功能发展等需求，同时也符合国家“三网融合”的发展方向，满足大范围能源资源优化配置需要。At present, radio and television network is undergoing a profound change in the digital. The development of digital television technology, new user demand appears ceaselessly, industry competition and government policy drive are required to broadcast television network to conduct a comprehensive reform, promote the competition between the industry and cooperation, so as to make the radio and television network operators are facing new opportunities and challenges. This paper first introduces the radio network and the current status of CATV two-way transformation of three kinds of main program, and all of the schemes are analyzed and compared, based on PFTTH to realize bidirectional digital television network scheme, this scheme not only satisfies the broadcast television two-way network bidirectional interaction, large capacity, multi-purpose development needs, but also meet national＂ triple play＂ direction of development, to meet a wide range of energy resource to optimize configuration required.

关 键 词：PFTTH EPON 双向有线电视 三网融合 

分 类 号：TN943.6[电子电信—信号与信息处理]