Rate region of the quadratic Gaussian two-encoder source-coding problem

Aaron B. Wagner, Saurabha Tavildar, Pramod Viswanath

Research output: Contribution to journalArticle


We determine the rate region of the quadratic Gaussian two-encoder source-coding problem. This rate region is achieved by a simple architecture that separates the analog and digital aspects of the compression. Furthermore, this architecture requires higher rates to send a Gaussian source than it does to send any other source with the same covariance. Our techniques can also be used to determine the sum-rate of some generalizations of this classical problem. Our approach involves coupling the problem to a quadratic Gaussian "CEO problem.".

Original languageEnglish (US)
Pages (from-to)1938-1961
Number of pages24
JournalIEEE Transactions on Information Theory
Issue number5
StatePublished - May 1 2008


  • CEO problem
  • Gaussian sources
  • Multiterminal source coding
  • Rate region
  • Remote source
  • Vector quantization
  • Worst case source

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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