Transmission of correlated sources over multiuser channels with receiver side information

Deniz Gündüz, Elza Erkip

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider transmission of correlated sources over multiuser channels where the receiver(s) have access to correlated side information. Our goal is to characterize necessary and sufficient conditions for lossless transmission and uncover scenarios where separation of source and channel coding, either in the traditional 'informational' sense (where both source and channel encoders and decoders are designed independently) or in the 'operational' sense (where the encoders are independent, but the source and channel decoding is done jointly), is optimal. We first study a multiple access channel where the source signals are independent given the receiver side information. We prove an informational source channel separation theorem for this communication system. We next investigate source and channel coding for the compound multiple access and interference channels. We give general sufficient conditions for lossless transmission of each source for both channels, and then provide necessary conditions that hold under certain assumptions on the nature of the source and the receiver side information. For the interference channel, the necessary conditions hinge on a strong source-channel interference condition which depends not only on the channel but on the source and side information correlations as well. Our results suggest the optimality of informational or operational separation depending on the correlation structure of the side information and the amount of interference.

Original languageEnglish (US)
Title of host publication2007 Information Theory and Applications Workshop, Conference Proceedings, ITA
Pages197-201
Number of pages5
DOIs
StatePublished - Dec 1 2007
Event2007 Information Theory and Applications Workshop, ITA - San Diego, CA, United States
Duration: Jan 29 2007Feb 2 2007

Publication series

Name2007 Information Theory and Applications Workshop, Conference Proceedings, ITA

Other

Other2007 Information Theory and Applications Workshop, ITA
CountryUnited States
CitySan Diego, CA
Period1/29/072/2/07

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ASJC Scopus subject areas

  • Information Systems
  • Information Systems and Management

Cite this

Gündüz, D., & Erkip, E. (2007). Transmission of correlated sources over multiuser channels with receiver side information. In 2007 Information Theory and Applications Workshop, Conference Proceedings, ITA (pp. 197-201). [4357580] (2007 Information Theory and Applications Workshop, Conference Proceedings, ITA). https://doi.org/10.1109/ITA.2007.4357580