Zero-delay broadcasting protocols for video-on-demand
Zero-delay broadcasting protocols for video-on-demand
复制标题
用于视频点播的零延迟广播协议
DOI：
10.1145/319463.319600
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
P. Mantey
中科院分区：
文献类型：
--
作者：
Jehan;D. Long;P. Mantey
用于视频点播的广播协议连续播放由许多观众同时观看的视频。几乎所有的广播协议都假设客户机顶盒有足够的存储空间来存储48到60分钟的视频。我们建议使用此存储来预测客户请求，并预加载前16到20个视频的前3分钟。这将提供对这些视频的即时访问，并且还消除了处理压缩视频信号所需的额外带宽。
我们提出了两个广播协议，使用部分预加载，以消除这种额外的带宽。这些协议中的第一个协议，部分预加载的多谐波广播（PHB-PP），将每个视频分割成20到160个相等持续时间的段，并将单独的数据流分配给每个单独的段。我们的第二个协议，玛雅神庙广播协议，使用更少的数据流，但需要更多的总带宽。
Broadcasting protocols for video-on-demand continuously retransmit videos that are watched simultaneously by many viewers. Nearly all broadcasting protocols assume that the client set-top box has enough storage to store between 48 and 60 minutes of video. We propose to use this storage to anticipate the customer requests and to preload, say, the first 3 minutes of the top 16 to 20 videos. This would provide instantaneous access to these videos and also eliminate the extra bandwidth required to handle compressed video signal.
We present two broadcasting protocols using partial preloading to eliminate this extra bandwidth. The first of these protocols, Polyharmonic Broadcasting with Partial Preloading (PHB-PP), partitions each video into between 20 and 160 segments of equal duration and allocates a separate data stream to each individual segment. Our second protocol, the Mayan Temple Broadcasting protocol, uses fewer data streams but requires more overall bandwidth.