The patched algorithm of dynamic cache for streaming media

The patch is an important technique for delivering video over Internet or VoD. It is a key method to improve effect for video's server. In this paper, we research the patch technique of proxy cache for streaming media using dynamic cache, proposed the three kind of patch strategy using dynamic cache: window patch, size patch, efficient patch. These methods increased the length of patch, solved the problem for using patch channel of the video's server, improved the byte-hit ratio of proxy cache for streaming media, and economized the resources of network backbone and video's server. Event-driven simulations are conducted to evaluate these kinds of strategy are better than prefix cache and segment cache.