Title :
Service aggregation through rate adaptation using a single storage format
Author :
Krishnan, R. ; Little, T.D.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Boston Univ., MA, USA
Abstract :
Service aggregation schemes like batching, caching and rate adaptation can enable large scale interactive multimedia services, such as movies-on-demand and popular television programming. These applications are characterized by a large user population and a high density of access. Rate adaptation is a dynamic service aggregation technique that can merge streams and reclaim resources at run-time. Existing schemes for rate adaptation are expensive since they require multiple content storage formats or special hardware, therefore, this technique has not been exploited so far. We propose a novel data placement and disk scheduling strategy which supports two different content progression rates originating from a single storage format, and that is applicable to single-disk architectures as well as to multi-disk architectures with large or small stripe-sets. The proposal leads to a feasible solution for dynamic service aggregation via rate adaptation, thereby making large scale multimedia services more economical
Keywords :
Internet; cache storage; client-server systems; interactive television; merging; multimedia communication; multimedia computing; scheduling; Internet; batching; caching; content progression rates; data placement; disk scheduling strategy; economics; large scale interactive multimedia services; movies-on-demand; multi-disk architectures; multiple content storage formats; rate adaptation; run-time; service aggregation; single storage format; single-disk architectures; stream merging; stripe-sets; television programming; user population; Bandwidth; Costs; Hardware; Large-scale systems; Merging; Motion pictures; Multimedia communication; Network servers; Streaming media; TV;
Conference_Titel :
Network and Operating System Support for Digital Audio and Video, 1997., Proceedings of the IEEE 7th International Workshop on
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3799-9
DOI :
10.1109/NOSDAV.1997.629386