全局视频环境:一种新型的视频点播系统分发环境

GloVE: A New Kind of Distributed Environment for Video-on-Demand Systems

介绍了一种具有可扩展性的视频点播系统:GloVE(全球视频环境)。在这种系统中,用户共同建造了一个共享的协作视频存储空间,并以此作为主要的视频信息来源供用户使用。在这种方式下,GloVE服务器不需要限制并发用户的数量。当视频信息存在于协作视频存储空间时,信息可直接从存储空间传送至用户,而不用通过VOD服务器。GloVE支持没有组播流传送功能的视频服务器,同时支持任意格式存储的视频信息。

In this paper, we introduce a scalable Video-on-Demand(VoD) system called GloVE (Global Video Environment) in which active clients cooperate to create a shareable video cache that is used as the primary source of video content for subsequent client requests. In this way, GloVE server's bandwidth does not limit the number of simultaneous clients that can watch a video since once its content is in the cooperative video cache (CVC) it can be directly transmitted from the cache rather than the VoD server. In addition, GloVE supports video servers without multicast capability and videos in any stored format.