VOD client terminal proxy caching server in digital family

Abstract

The invention provides a design method for digital family VOD client end caching proxy server, aiming at the disadvantages of the prior art. Based on the replacement algorithm of weighted popularity,the invention provides an effective technical measure and solution aiming at the problems of network congestion and playing quality reduction resulted from VOD storm. Compared with other methods, theinvention is mainly characterized in the design of streaming media proxy caching strategy of family VOD client end caching proxy server, providing a streaming media proxy caching strategy based on thereplacement algorithm of weighted popularity. According to the size of weighted popularity, the popular degree of a certain streaming media can be known more accurately and also queuing priority of streaming media can be adjusted more instantly, thereby overcoming the network congestion produced by slow explosive request affection, enhancing response hit rate in caching media, and increasing total time required by that user sends out request until finishes receiving response message.

Description

technical field [0001] The invention belongs to the field of digital home network and multimedia technology, and in particular relates to the design and realization of a digital home media server. Background technique [0002] Web caching technology is now one of the indispensable network technologies. Store the requested Web object (such as HTML page or image) on the proxy server between the remote server and the client, then the subsequent repetition of the Web object Requests can be served directly from the cache, thus reducing access time and saving important network resources. In order to improve the playback quality of streaming media, we can also introduce a proxy cache server at the end close to the client, and formulate a suitable proxy cache strategy. The cache space of the proxy server is limited. When the space is full, some data with low utilization must be removed to provide better services. The cache replacement strategy is used to decide which caches to rem...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the hit rate is ignored, which will cause unpopular streaming media to occupy the cache for a long time, wasting precious cache resources

[0006] Based on the above research, this paper proposes a replacement algorithm based on weighted popularity, and formulates a new strategy to improve the network congestion and playback quality degradation caused by on-demand storms.

Images