On Cascade Source Coding with A Side Information "Vending Machine"

Details On Cascade Source Coding with A Side Information "Vending Machine" On Cascade Source Coding with A Side Information "Vending Machine"

2012-04-06

arxiv.org/abs/1204.1548v1

Computer Science

Information Theory

A shorter version has been submitted to ITW 2012

Scientific paper

The model of a side information "vending machine" accounts for scenarios in which acquiring side information is costly and thus should be done efficiently. In this paper, the three-node cascade source coding problem is studied under the assumption that a side information vending machine is available either at the intermediate or at the end node. In both cases, a single-letter characterization of the available trade-offs among the rate, the distortions in the reconstructions at the intermediate and at the end node, and the cost in acquiring the side information are derived under given conditions.

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