关键词: 中心环, 旋转木马, 应用层组播, 流媒体, 数据传输率

Abstract: A distributed application layer multicast model based on Central Ring Carousel algorithm was proposed. The model employed ring as the basic topology unit, constructed carousel on each central node, and built its upper rings topology according to each node's priority. The simulation results indicate that CRCL can improve the performance of streaming media application efficiently, especially in data transmission, convergence time and average path length.

Key words: central ring, carousel, application layer multicast, steam media, data transmission rate