The joint Gaussian CEO/MAC problem and relaying

Yuval Kochman*, Ram Zamir

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We consider the problem of agents which observe a noisy version of a source, and communicate with a central decoder ("CEO") through a multiple access channel (MAC). We assume that the source, the observation noises and the channel noise are all Gaussian, and we are interested in reconstruction under a mean squared error distortion measure. The solution by separation (combination of CEO and MAC coding) is suboptimal. When the source and channel bandwidth (BW) are equal, analog transmission is optimal. We present a scheme for non-equal BW which becomes asymptotically optimal in the limit of low observation noise. We use this scheme to improve our recently presented Rematch and Forward approach for the parallel relay network, and thus extend the achievable rate.

Original languageAmerican English
Title of host publication46th Annual Allerton Conference on Communication, Control, and Computing
Pages1554-1561
Number of pages8
DOIs
StatePublished - 2008
Externally publishedYes
Event46th Annual Allerton Conference on Communication, Control, and Computing - Monticello, IL, United States
Duration: 24 Sep 200826 Sep 2008

Publication series

Name46th Annual Allerton Conference on Communication, Control, and Computing

Conference

Conference46th Annual Allerton Conference on Communication, Control, and Computing
Country/TerritoryUnited States
CityMonticello, IL
Period24/09/0826/09/08

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