Strategies for Efficient Streaming in Delay-Tolerant Multimedia Applications

Saraswathi Krithivasan, Sridhar Iyer
2006 Eighth IEEE International Symposium on Multimedia (ISM'06)  
We consider Multimedia applications where clients specify a minimum desired stream rate (quality) and a time till when they are willing to wait, termed delay tolerance. The Content Service Provider's (CSP) objective is to service as many clients' requests for the same multimedia content with a single stream while satisfying their requirements. We propose an optimization approach to determine the rates delivered at clients and study three transcoder deployment strategies: i) Source Transcoding
more » ... ource Transcoding (ST): when content encoded at different rates are available only at the source (ii)Anywhere Transcoding (AT): when transcoding capability is available at all intermediate nodes, and (iii)Selected Node Transcoding (SNT): when transcoding capability is available at selected intermediate nodes. Considering the complexity of the optimal solution, we propose a set of heuristic based algorithms for delivering enhanced rates to clients using the three strategies. A practical content dissemination network is used to demonstrate the effectiveness of our strategies. 512 1 384 2 R1 256 3 256 4 R2 128 5 C1 C3 C2 S
doi:10.1109/ism.2006.142 dblp:conf/ism/KrithivasanI06 fatcat:uufxq5nobjemzongkj6zkpsuei