Dirty interference cancelation for multiple access channels

Ruchen Duan, Yingbin Liang, Ashish Khisti, Shlomo Shamai

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

2 Scopus citations

Abstract

The state-dependent multiple access channel with a helper is investigated, in which transmitters 1 and 2 send two messages respectively to one receiver, which is corrupted by an independent and identically distributed (i.i.d.) state sequence. The state sequence is known to neither the transmitters nor the receiver, but is known to a helper noncausally. Thus, the helper assists the multi-access transmission by exploiting the state information. Our focus is on the Gaussian channel with additive state. An outer bound on the capacity region is first derived, and an inner bound is then obtained based on a dirty interference cancelation scheme. By comparing the inner and outer bounds, the full capacity region or segment on the boundary of the capacity region are characterized under various channel parameters. Practical motivation of the model and implication of the results are also discussed.

Original languageEnglish (US)
Title of host publicationProceedings of 2014 International Symposium on Information Theory and Its Applications, ISITA 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages463-467
Number of pages5
ISBN (Electronic)9784885522925
StatePublished - Dec 8 2014
Event2014 International Symposium on Information Theory and Its Applications, ISITA 2014 - Melbourne, Australia
Duration: Oct 26 2014Oct 29 2014

Publication series

NameProceedings of 2014 International Symposium on Information Theory and Its Applications, ISITA 2014

Other

Other2014 International Symposium on Information Theory and Its Applications, ISITA 2014
CountryAustralia
CityMelbourne
Period10/26/1410/29/14

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems

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