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基于多传播路径的VOD服务QoS保证的新构架
引用本文:朱明,吴玮.基于多传播路径的VOD服务QoS保证的新构架[J].计算机辅助工程,2004,13(4):41-45.
作者姓名:朱明  吴玮
作者单位:中国科学技术大学,自动化系,安徽,合肥,230027
基金项目:国家863计划重大专项"高性能宽带信息网"应用支撑环境(2003AA103810)
摘    要:提出一种流媒体视频点播服务(VOD服务)的新架构,在应用层上实现VOD服务所需数据的多传播路径,旨在降低网络带宽波动对流媒体VOD服务的影响,克服传统方式下当某一传输数据的路由因请求过多或其他原因发生拥塞时服务质量(QoS)难以保证的问题。还具体给出了多路径传播的协议和实现算法,实验结果也证明该架构能够有效减少对单一路由、特别是中心VOD服务器带宽的压力,使得数据传输能够根据带宽的变化动态变化,从而更好地保证VoD服务的QoS。

关 键 词:流媒体  架构  服务质量(QoS)  实现算法  VOD  应用层  多路径  带宽  QoS保证  视频点播服务
文章编号:1006-0871(2004)04-0041-05
修稿时间:2004年9月28日

New video-on-demand service architecture using multi-spread path to guarantee QoS
ZHU Ming,WU Wei.New video-on-demand service architecture using multi-spread path to guarantee QoS[J].Computer Aided Engineering,2004,13(4):41-45.
Authors:ZHU Ming  WU Wei
Abstract:A new Video-on-Demand (VOD) Service architecture is put forward and spreading VOD data through multi paths on application layer is achieved. The new architecture can reduce the influence of band-width fluctuation on QoS of VOD service and can overcome the defect of traditional architecture because of a single routing congestion under too many VOD data or other reasons when the QoS of service can't guarantee. The protocol and arithmetic of multi-spread paths are given out. The experiment proves that the new architecture can lighten the pressure on a single routing service for VOD, especially on main VOD server, and the spreading of VOD data can change the band-width, and can guarantee QoS of VOD service better than traditional one.
Keywords:multi-spread paths  QoS  VOD service
本文献已被 CNKI 维普 万方数据 等数据库收录!
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