Outer bound and noisy-interference sum-rate capacity for symmetric Gaussian interference channels

Xiaohu Shang, Gerhard Kramer, Biao Chen

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

11 Scopus citations

Abstract

A new outer bound on the capacity region of Gaussian interference channels is developed. The bound combines and improves existing genie-aided methods and is shown to give the sum-rate capacity for Gaussian interference channel with noisy interference as defined in this paper. Specifically, it is shown that if the channel coefficients and power constraints satisfy a simple condition then single-user detection at each receiver is sum-rate optimal, i.e., treating the interference as noise incurs no loss in performance. Finally, we generalize the noisy interference sum-rate capacity to m-user interference channels.

Original languageEnglish (US)
Title of host publicationCISS 2008, The 42nd Annual Conference on Information Sciences and Systems
Pages385-389
Number of pages5
DOIs
StatePublished - Sep 22 2008
EventCISS 2008, 42nd Annual Conference on Information Sciences and Systems - Princeton, NJ, United States
Duration: Mar 19 2008Mar 21 2008

Publication series

NameCISS 2008, The 42nd Annual Conference on Information Sciences and Systems

Other

OtherCISS 2008, 42nd Annual Conference on Information Sciences and Systems
CountryUnited States
CityPrinceton, NJ
Period3/19/083/21/08

Keywords

  • Capacity
  • Gaussian noise
  • Interference

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems
  • Control and Systems Engineering

Cite this

Shang, X., Kramer, G., & Chen, B. (2008). Outer bound and noisy-interference sum-rate capacity for symmetric Gaussian interference channels. In CISS 2008, The 42nd Annual Conference on Information Sciences and Systems (pp. 385-389). [4558557] (CISS 2008, The 42nd Annual Conference on Information Sciences and Systems). https://doi.org/10.1109/CISS.2008.4558557