000086802 001__ 86802
000086802 005__ 20190316233742.0
000086802 037__ $$aCONF
000086802 245__ $$aJoint Smoothing and Source Rate Selection for Guaranteed Service Networks
000086802 269__ $$a2001
000086802 260__ $$bEUSIPCO$$c2001
000086802 336__ $$aConference Papers
000086802 490__ $$aProceedings of EUSIPCO 2002
000086802 520__ $$aWe consider the transmission of variable bit rate (VBR) video over a network offering a guaranteed service such as ATM VBR or the guaranteed service of the IETF. The guaranteed service requires that the flow accepted by the network has to be conforming with a traffic envelope sigma. In this context, the output of the video encoder is constrained by the traffic envelope defined at the network entry point, the playback delay budget and the decoding buffer size. In previous works, the constraints are satisfied either by smoothing a fixed coder output, or by modifying the encoding parameters. In this paper we take a combined approach. This allows us to find a joint source rate selection/smoothing solution which minimizes the total average distortion while satisfying constraints on traffic envelope, playback delay and decoding buffer size. Our solution is based on a Viterbi-like algorithm. Our approach is made possible by the representation of the optimally smoothed output as the time inverse of a shaper output. Preliminary experimental results exhibit significant improvements in terms of total average distortion compared to the Open-Loop VBR case, under equivalent traffic parameters and decoding constraints.
000086802 6531_ $$aLTS4
000086802 6531_ $$aSmoothing Video Network Calculus
000086802 700__ $$aVerscheure, Olivier
000086802 700__ $$0241061$$g101475$$aFrossard, Pascal
000086802 700__ $$aLe Boudec, Jean-Yves$$g105633$$0241098
000086802 773__ $$j2$$tProceedings of the IEEE Infocom Conference$$q613-620
000086802 8564_ $$uhttps://infoscience.epfl.ch/record/86802/files/Verscheure2001_73.pdf$$zn/a$$s762758
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000086802 937__ $$aEPFL-CONF-86802
000086802 970__ $$aVerscheure2001_73/LTS
000086802 973__ $$sPUBLISHED$$aEPFL
000086802 980__ $$aCONF