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Multimedia Proxy Caching

quality service reference appropriate

Definition: Multimedia proxy caching, which is a small proxy server cache that is located close to a group of clients and is administrated by them, caches some popular streams from different servers with appropriate quality, with the goal to improve scalability and quality of service by reducing network traffic and delivery delay.

The high bandwidth requirements and continuous streaming demand of digital video coupled with the best effort service model of IP networks and the heterogeneity of end user devices makes it difficult to provide quality of service for multimedia streaming. Multimedia Proxy caching, a small proxy server cache that is located close to a group of clients and is administrated by them, caches some popular streams from different servers with appropriate quality, wit the goal to improve scalability and quality of service by reducing network traffic and delivery delay. Figure 1 illustrates one example of multimedia proxy caching. One sample approach is segmentation based proxy caching (e.g., reference) where the multimedia objects are segmented and partial segments are cached in the proxy instead of the entire multimedia objects.

Interested readers can reference the papers by Rejaie, et al and Chen, et al or some other technical papers published in the last five years.

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