Multiple Description Coding of Discrete Ergodic Sources

Details Multiple Description Coding of Discrete Ergodic Sources Multiple Description Coding of Discrete Ergodic Sources

2009-11-04

arxiv.org/abs/0911.0737v1

Computer Science

Information Theory

6 pages, 3 figures, presented at 2009 Allerton Conference on Communication, Control and Computing

Scientific paper

We investigate the problem of Multiple Description (MD) coding of discrete ergodic processes. We introduce the notion of MD stationary coding, and characterize its relationship to the conventional block MD coding. In stationary coding, in addition to the two rate constraints normally considered in the MD problem, we consider another rate constraint which reflects the conditional entropy of the process generated by the third decoder given the reconstructions of the two other decoders. The relationship that we establish between stationary and block MD coding enables us to devise a universal algorithm for MD coding of discrete ergodic sources, based on simulated annealing ideas that were recently proven useful for the standard rate distortion problem.

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