Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits

Suvarup Saha; Randall A. Berry

doi:10.1109/Allerton.2011.6120255

Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits

Suvarup Saha^*, Randall A. Berry

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Scopus citations

Abstract

Though the capacity of the 2-user Gaussian interference channel has long eluded information theorists, recent progress has been made by focussing on approximations with provable bounds. However, extensions to a general K-user network has proven to be non-obvious, in particular due to the role of interference alignment in these cases. In this paper, we look at a special case of a K-user Gaussian interference network where only one of the users interferes with and is also interfered by all the other users. We determine the sum-capacity of such a network within O(K) bits for all possible values of the channel parameters, provided the direct signal is stronger than the receiver noise.

Original language	English (US)
Title of host publication	2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011
Pages	847-854
Number of pages	8
DOIs	https://doi.org/10.1109/Allerton.2011.6120255
State	Published - 2011
Event	2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011 - Monticello, IL, United States Duration: Sep 28 2011 → Sep 30 2011

Publication series

Name	2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011

Other

Other	2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011
Country/Territory	United States
City	Monticello, IL
Period	9/28/11 → 9/30/11

ASJC Scopus subject areas

Computer Networks and Communications
Control and Systems Engineering

Access to Document

10.1109/Allerton.2011.6120255

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Saha, S., & Berry, R. A. (2011). Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits. In 2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011 (pp. 847-854). Article 6120255 (2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011). https://doi.org/10.1109/Allerton.2011.6120255

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title = "Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits",

abstract = "Though the capacity of the 2-user Gaussian interference channel has long eluded information theorists, recent progress has been made by focussing on approximations with provable bounds. However, extensions to a general K-user network has proven to be non-obvious, in particular due to the role of interference alignment in these cases. In this paper, we look at a special case of a K-user Gaussian interference network where only one of the users interferes with and is also interfered by all the other users. We determine the sum-capacity of such a network within O(K) bits for all possible values of the channel parameters, provided the direct signal is stronger than the receiver noise.",

author = "Suvarup Saha and Berry, {Randall A.}",

year = "2011",

doi = "10.1109/Allerton.2011.6120255",

language = "English (US)",

isbn = "9781457718168",

series = "2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011",

pages = "847--854",

booktitle = "2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011",

note = "2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011 ; Conference date: 28-09-2011 Through 30-09-2011",

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Saha, S & Berry, RA 2011, Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits. in 2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011., 6120255, 2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011, pp. 847-854, 2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011, Monticello, IL, United States, 9/28/11. https://doi.org/10.1109/Allerton.2011.6120255

Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits. / Saha, Suvarup; Berry, Randall A.
2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011. 2011. p. 847-854 6120255 (2011 49th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Sum-capacity of a class of K-user Gaussian interference channels within O(K) bits

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