Lattice-Based Robust Distributed Source Coding for Three Correlated Sources

The problem of robust distributed source coding for three correlated sources is studied in this work. A lattice-based scheme is proposed and the analysis of its performance is provided in the high resolution regime. Special attention is paid to the degenerate case where the three sources are Gaussia...

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Vydáno v:IEEE transactions on communications Ročník 68; číslo 7; s. 4089 - 4103
Hlavní autoři: Dumitrescu, Sorina, Elzouki, Dania, Chen, Jun
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.07.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
asymptotic performance analysis
Codes
Coding
Correlated sources
Correlation analysis
Decoders
Decoding
Distortion
distributed source coding
high resolution
Indexes
Information theory
lattice quantization
Lattices
multiple description coding
Robustness
Source coding
ISSN:0090-6778, 1558-0857
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Shrnutí:The problem of robust distributed source coding for three correlated sources is studied in this work. A lattice-based scheme is proposed and the analysis of its performance is provided in the high resolution regime. Special attention is paid to the degenerate case where the three sources are Gaussian and identical. In this case, our scheme is shown to achieve within an asymptotic gap of 0.069 bits in terms of rate per description from the information-theoretic limit of quadratic symmetric Gaussian multiple description coding with central and individual decoders, when the side distortion and the ratio between the central and side distortions both approach 0.
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content type line 14
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2020.2987565