关键词: 流媒体缓存, 缓存代理服务器, 替换算法, 前缀缓存, CBR, DRA

Abstract: Proxy cache is a way to improve the Qos of internet accessing. It has been proved that the proxy cache have some effect on streaming media. Cache algorithm is the core of proxy cache which includes storage mode, replication policy and so on. In this paper, based on the storage mode which divided streaming media file into grades by the bite-rate, a dynamic replication algorithm (DRA) was brought forward to improve request-hit-number of proxy cache.

Key words: streaming media cache, proxy cache, replication policy, prefix cache, CBR, DRA