The PT-2 caching algorithm in the transcoding proxy cluster to facilitate adaptive content delivery

With the advent of wireless network devices, clients such as PDAs and mobiles have become heterogeneous in terms of their capabilities. For the purpose of maintaining different categories of clients, transcoding has emerged as a major field in adaptive multimedia delivery. However, little work has been performed in the area of caching transcoded streaming media in a cluster environment. We therefore propose a new partial caching algorithm for improving cache utilization and adapting heterogeneous content delivery to reduce startup latency.