Segment-based adaptive caching for streaming media delivery on the internet

Abstract

Delivering streaming media objects on the Internet consume a significant amount of network resources. Segment-based proxy caching schemes have been an effective solution. In this paper, we investigate the bandwidth consumption of streaming multiple objects from a remote server through a proxy to multiple clients. We propose a caching strategy to realize the suffix segment data adaptively caching at proxy, and integrate it with multicast-based batched patching transmission strategy to develop a proxy - assisted scheme that can efficiently support to deliver media objects in the Internet-like environment. We then introduce a simple transmission cost model to quantify the overall usage of network bandwidth of our framework. Simulation results show that our scheme can reduce the consumption of aggregate transmission cost significantly under the small amount cache size at proxy. © Springer-Verlag 2004.