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首页> 外文期刊>IEEE Transactions on Communications >A recursive frequency-splitting scheme for broadcasting hot videos in VOD service
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A recursive frequency-splitting scheme for broadcasting hot videos in VOD service

机译：在VOD服务中广播热点视频的递归分频方案

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摘要

One way to broadcast a popular/hot video is to let multiple users share a few channels. The stress on the scarce channels can be alleviated without sacrificing viewer waiting time. One common approach is to partition the video into fixed-length segments, which are broadcast on several channels periodically. Two representative approaches are the fast broadcasting scheme and the PAGODA scheme, which can broadcast a video using k channels by having new viewers wait no longer than /spl Theta/(D/2/sup k/) and /spl Theta/(D/5/sup k/2/) time, respectively, where D is the length of the video. In this paper, we propose a new scheme, called recursive frequency splitting (RFS), that significantly improves on existing schemes in terms of viewer waiting time. Some lower bounds on the viewers' waiting time are also developed.
机译：广播热门视频的一种方法是让多个用户共享几个频道。可以在不牺牲观众等待时间的情况下缓解稀缺频道上的压力。一种常见的方法是将视频划分为固定长度的片段，并在几个频道上定​​期广播这些片段。两种代表性的方法是快速广播方案和PAGODA方案，它们可以通过让新的观众等待不超过/ spl Theta /（D / 2 / sup k /）和/ spl Theta /（D / 5 / sup k / 2 /）时间，其中D是视频的长度。在本文中，我们提出了一种称为递归分频（RFS）的新方案，该方案在观看者等待时间方面显着改善了现有方案。还建立了观众等待时间的一些下限。

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