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Article Dans Une Revue Physical Communication Année : 2019

Rate-Storage Regions for Extractable Source Coding with Side Information

Résumé

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.
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Dates et versions

hal-02925026 , version 2 (03-12-2019)
hal-02925026 , version 1 (28-08-2020)

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Citer

Elsa Dupraz, Aline Roumy, Thomas Maugey, Michel Kieffer. Rate-Storage Regions for Extractable Source Coding with Side Information. Physical Communication, 2019, ⟨10.1016/j.phycom.2019.100845⟩. ⟨hal-02925026v1⟩
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