Symmetric K-user Gaussian interference channels: Approximate sum-capacity via deterministic modeling

Suvarup Saha*, Randall A Berry

*Corresponding author for this work

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

5 Scopus citations

Abstract

Linear deterministic interference channel models approximate Gaussian channels when the signal-to-noise ratio is high. Exact analysis of the former has in some cases yielded approximate capacity results in the latter, like the 2-user interference channel or the relay channel. Here, we follow a similar program for K-user symmetric interference channels. Specifically, we translate achievable strategies for the deterministic case derived in an earlier paper to the Gaussian case using nested lattice codes. In this case, the approximation gap depends on the channel parameters and becomes unbounded in certain regimes.

Original languageEnglish (US)
Title of host publication2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
Pages1775-1782
Number of pages8
DOIs
StatePublished - Dec 1 2012
Event2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012 - Monticello, IL, United States
Duration: Oct 1 2012Oct 5 2012

Other

Other2012 50th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2012
CountryUnited States
CityMonticello, IL
Period10/1/1210/5/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications

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