The patched algorithm of dynamic cache for streaming media

The patch is an important technique for delivering video over the Internet or VoD. It is a key method to improve the effect for the video server. We research the patch technique of proxy cache for streaming media using dynamic cache, and propose three kinds of patch strategy using dynamic cache: window patch; size patch; efficient patch. These methods increase the patch length, solve the problem of using the patch channel of the video server, improve the byte-hit ratio of the proxy cache for streaming media, and economize the resources of the network backbone and the video server. Event-driven simulations are conducted to evaluate whether these kinds of strategy are better than prefix cache and segment cache.