北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (6): 34-37.doi: 10.13190/jbupt.200806.34.luoy

• 论文 • 上一篇    下一篇

HFC接入网交互视频多业务的网络设计

罗亚 王劲林 邓浩江 胡冰   

  1. 中国科学院 声学研究所 北京 100190
  • 收稿日期:2008-03-13 修回日期:1900-01-01 出版日期:2008-12-31 发布日期:2008-12-31
  • 通讯作者: 罗亚

HFC Access Network Design for Interactive Video Multi-Service

LUO Ya Jin-Lin Wang Deng Hao-jiang Hu Bing   

  1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2008-03-13 Revised:1900-01-01 Online:2008-12-31 Published:2008-12-31
  • Contact: LUO Ya

摘要:

针对单业务独占带宽和多业务共享带宽的2种模式,基于交互视频业务服务性能指标的流量强度的分析,提出一种混合光纤同轴电缆(HFC)接入网交互视频多业务的网络设计方法。该方法彩扩展的Erlang B 模型和Kaufman-Roberts递归算法进行网络设计,并以视频点播和时移电视业务为例,给出最优带宽资源射频频率数的计算方法,实现HFC网络交互视频业务的经济部署。

关键词: 多业务, 交互电视, 网络设计, 混合光纤同轴电缆网

Abstract:

Based on analysis of service blocking rate and traffic intensity of interactive
video services, a new hybrid fibercoaxial (HFC) access network design for inte
ractive video multiservice was presented with extended Erlang B model under no
nsharing edge bandwidth circumstances and with KaufmanRoberts recursive algo
rithm under sharing circumstances. Formulas were provided to calculate the optim
al Internet protocol quadrature amplitude modulation radio frequency numbers of
timeshifted television video and videoondemand services to achieve
an economical deployment of interactive video services. 

Key words: multi-service, interactive television, network design, Hybrid Fiber Coax

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