摘要
在对等网中,BT技术是目前热门且有效的分布式文件传输技术之一。借助BT技术,可以设计视频点播系统。由于BT是针对传输普通文件设计的,为了快速分享与下载,采用片段选择(Piece Selection)算法。此方法所下载的部分非常分散,故不适用于传输媒体流,需要对片段选择算法进行改进,以适应视频点播。由于没有改动BT协议,可充分利用现有的BT环境。
BT technology is currently the most popular and effective one Distributed file transfer technology, we can make use of BT technology to design video-on-demand system. Due to the BT was designed for transferring general big file, in order to share and download quickly, the choice of fragments (Piece Selection) algorithm would have downloaded some very scattered, which does not suitable for transmission media stream. We need to improve the fragment selection algorithm to video-on-demand. In addition, since no changes to the BT protocol, we can take full advantage of BT environment.
出处
《电脑知识与技术》
2009年第4X期3262-3264,共3页
Computer Knowledge and Technology
