Multimedia Proxy Caching Mechanism for Quality Adaptive Streaming Applications in the Internet

— The Internet has witnessed a rapid growth in deployment of Web-based streaming applications during recent years. In these applications, server should be able to perform end-to-end congestion control and quality adaptation to match the delivered stream quality to the average available bandwidth. The delivered quality is limited by the bottleneck bandwidth on the path to the client. This paper proposes a proxy caching mechanism for layered-encoded multimedia streams in the Internet to maximize the delivered quality of popular streams to interested clients. The main challenge is to replay a quality-variable cached stream while performing quality adaptation effectively in response to the variations in available bandwidth. We present a pre-fetching mechanism to support higher quality cached streams during subsequent playbacks and improve the quality of the cached stream with its popularity. We exploit inherent properties of multimedia streams to extend the semantics of popularity and ca...

• Type: Conference
• Year: 2000
• Where: INFOCOM
• Authors: Reza Rejaie, Haobo Yu, Mark Handley, Deborah Estrin
• Keywords: Cached, Communications, Delivered Quality, INFOCOM 2000, Quality Cached Streams