NDLI: The sum-capacity of the linear deterministic three-user cognitive interference channel

Content Provider	IEEE Xplore Digital Library
Author	Maamari, D. Tuninetti, D. Devroye, N.
Copyright Year	2012
Description	Author affiliation: Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago IL 60607, USA (Maamari, D.; Tuninetti, D.; Devroye, N.)
Abstract	Inspired by cognitive networks, we consider the linear deterministic three-user cognitive interference channel with one primary and two secondary/cognitive transmitters which approximates the Gaussian channel at high SNR. Outer bounds on the sum-rate are derived and matching transmission schemes are provided in all interference regimes, thereby completely characterizing the sum-capacity. Significant increase in the sum-capacity is demonstrated when comparing the three-user cognitive channel to the classical (non-cognitive) three-user interference channel and to the two-user cognitive channel. The paper discusses extensions to an arbitrary number of users, the relationship between the cognitive channel and the (fully cooperative) broadcast channel, and observations on the behavior of the cognitive transmitters in the different interference scenarios.
Starting Page	2107
Ending Page	2111
File Size	350286
Page Count	5
File Format	PDF
ISBN	9781467325806
ISSN	21578117
e-ISBN	9781467325790
e-ISBN	9781467325783
DOI	10.1109/ISIT.2012.6283734
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference channels Cognition Receivers Cognitive radio Radio transmitters
Content Type	Text
Resource Type	Article

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