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Multiple description coding with many channels

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3 Author(s)
Venkataramani, R. ; Bell Labs., Murray Hill, NJ, USA ; Kramer, G. ; Goyal, V.K.

An achievable region for the L-channel multiple description coding problem is presented. This region generalizes two-channel results of El Gamal and Cover (1982) and of Zhang and Berger (1987). It further generalizes three-channel results of Gray and Wyner (1974) and of Zhang and Berger. A source that is successively refinable on chains is shown to be successively refinable on trees. A new outer bound on the rate-distortion (RD) region for memoryless Gaussian sources with mean squared error distortion is also derived. The achievable region meets this outer bound for certain symmetric cases.

Published in:

Information Theory, IEEE Transactions on  (Volume:49 ,  Issue: 9 )

Date of Publication:

Sept. 2003

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