Rate-storage regions for Extractable Source Coding with side information

This papers considers the coding of a source X with J decoders, each having access to a different side information Y(j). We define a new source coding problem called Extractable Source Coding with Side Information (ESC-SI). In this problem, the server stores one single coded description of the sourc...

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Veröffentlicht in:Physical communication Jg. 37; S. 100845 - 24
Hauptverfasser: Dupraz, Elsa, Roumy, Aline, Maugey, Thomas, Kieffer, Michel
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier B.V 01.12.2019
Elsevier
Schlagworte:
Computer Science
Engineering Sciences
Gaussian sources
General sources
Information Theory
Lossless source coding
Lossy source coding
Signal and Image processing
Source coding with side information
Storage-transmission rate region
Source coding with side information
General sources
Gaussian sources
Lossy source coding
Lossless source coding
Storage-transmission rate region
Information theory
ISSN:1874-4907, 1876-3219
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Beschreibung
Zusammenfassung:This papers considers the coding of a source X with J decoders, each having access to a different side information Y(j). We define a new source coding problem called Extractable Source Coding with Side Information (ESC-SI). In this problem, the server stores one single coded description of the source, from which J descriptions can be extracted without re-encoding, depending on the side information available at the decoder. We want to minimize both the storage rate of the source on the server, and the J transmission rates from the server to the decoders. We provide the achievable storage-transmission rate regions for lossless source coding of general, non i.i.d., non-ergodic sources, and the achievable storage-transmission rate-distortion regions for lossy source coding for non i.i.d. Gaussian sources. The regions obtained for such general source models provide insightful design guidelines for practical applications.
ISSN:1874-4907
1876-3219
DOI:10.1016/j.phycom.2019.100845