HFC接入网交互视频多业务的网络设计  

HFC Access Network Design for Interactive Video Multi-Service

作　　者：罗亚[1] 王劲林[1] 邓浩江[1] 胡冰[1] 

机构地区：[1]中国科学院声学研究所,北京100190

出　　处：《北京邮电大学学报》2008年第6期34-37,75,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家发改委下一代互联网示范工程2005项目(CNGI-04-15-2A)

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和流量强度的分析,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.该方法采用扩展的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.Based on analysis of service blocking rate and traffic intensity of interactive video services, a new hybrid fiber-coaxial （HFC） access network design for interactive video multi-service was presented with extended Erlang B model under non-sharing edge bandwidth circumstances and with Kaufman- Roberts recursive algorithm under sharing circumstances. Formulas were provided to calculate the optimal 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.

关 键 词：多业务 交互电视 网络设计 混合光纤同轴电缆网 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]