Source Coding With a Listening-Helper

Research output: Contribution to journalArticlepeer-review


We consider the cooperative coding of a pair of correlated memoryless source and side-information sequences wherein an encoder assisted by a side-information aided listening-helper describe the source and side-information to a receiver. We obtain a single-letter characterization of the rate region in both cases: when the decoder reconstructs just the source and when it reconstructs both the source and side-information. In the quadratic Gaussian setting we determine the optimal law characterizing the rate region using a technique introduced by Courtade in combination with a conditional version of the converse for the Gaussian CEO problem.

Original languageEnglish
Pages (from-to)2135-2151
Number of pages17
JournalIEEE Transactions on Information Theory
Issue number4
StatePublished - 1 Apr 2023

Bibliographical note

Publisher Copyright:
© 1963-2012 IEEE.


  • Multi-terminal source coding
  • cooperation
  • non-causal helper
  • non-causal side-information


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