摘要
1.引言
视频点播(Video on Demand,VoD)是指一个由用户主动发起接收远地存储的视频,且经过可接受的时延收到并在客户端回放的过程[1].视频点播技术改变了传统的用户被动接受方式,被认为是下一代宽带互联网上最重要和最有价值的网络服务之一.
Video on Demand(VoD)systems are considered as one of the most valuable services for the next generation broad-bandwidth Internet. To provide high-quality service, the VoD system must employ an admission control module to guarantee QoS, but there are still less research works having been made in this field, especially for distributed VoD systems. In this paper, we mainly focus on distributed admission control for VBR video streams in distributed VoD systems. We firstly discuss different approaches and then two admission control strategies are proposed with experimental comparisons. Our research is also further extended to resource assignment in distributed VoD systems. At the end of this article, we address issues in implementing distributed admission control.
出处
《计算机科学》
CSCD
北大核心
2003年第12期66-68,77,共4页
Computer Science
基金
国家863高科技发展计划资助(编号:2001AA113050)
