earticle

영어

Multi-media is more and more popular in all levels of education for its vivid picture and video. Due to the increasing number of videos and pictures in school server, how terminal computers in classrooms access multimedia at low cost is an important problem to solve. A novel dynamic scheduling algorithm of PCASGP (Proxy caching algorithm based on segment group popularity for streaming media). Based on the popularity of the segment group, content of proxy caching would be replaced and data size would in proportion of segment popularity. The cache window size would be updated dynamically with the access time based on the algorithm. Results of simulation shows that the algorithm is quite adaptable and can gain more average number of streaming media objects with less delayed access ratio.