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Branch and bound algorithms for rate-distortion optimized media streaming

par Röder, Martin;Cardinal, Jean ;Hamzaoui, Raouf
Référence IEEE transactions on multimedia, 8, 1, page (170-178)
Publication Publié, 2006-02

Article révisé par les pairs

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Résumé :

We consider the problem of rate-distortion optimized streaming of packetized multimedia data over a single quality-of-service network using feedback and retransmissions. For a single data unit, we prove that the problem is NP-hard and provide efficient branch and bound algorithms that are much faster than the previously best solution based on dynamic programming. For a group of interdependent data units, we show how to compute optimal solutions with branch and bound algorithms. The branch and bound algorithms for a group of data units are much slower than the current state of the art, a heuristic technique known as sensitivity adaptation. However, in many real-world situations, they provide a significantly better rate-distortion performance. © 2006 IEEE.