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Many multimedia applications rely on video streaming techniques. However, large scale video delivery is still challenging since it requires a large amount of resources. This paper proposes a proxy-assisted periodic broadcast architecture for video delivery to a large number of clients over the Internet. The video delivery technique is based on a combination of periodic broadcast by central server and proxy server caching. A proxy server caches either part or the entire video based on the video popularity. A video stored in the central server is partitioned into two parts, a server prefix and a server suffix, based on the aggregated demand for the video from all communities.
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