The Approximate Capacity Region of the Symmetric $K$-user Gaussian Interference Channel with Strong Interference

Handle URI:
http://hdl.handle.net/10754/601294
Title:
The Approximate Capacity Region of the Symmetric $K$-user Gaussian Interference Channel with Strong Interference
Authors:
Chaaban, Anas ( 0000-0002-8713-5084 ) ; Sezgin, Aydin
Abstract:
The symmetric K-user interference channel is studied with the goal of characterizing its capacity region in the strong interference regime within a constant gap. The achievable rate region of a scheme combining rate-splitting at the transmitters and interference alignment and successive decoding/computation at the receivers is derived. Next it is shown that this scheme achieves the so-called greedy-max corner points of the capacity region within a constant gap. By combining this result with previous results by Ordentlich et al. on the sum-capacity of the symmetric interference channel, a constant gap characterization of the capacity region for the strong interference regime is obtained. This leads to the first approximate characterization of the capacity region of the symmetric K-user IC. Furthermore, a new scheme that achieves the sum-capacity of the channel in the strong interference regime within a constant gap is also proposed, and the corresponding gap is calculated. The advantage of the new scheme is that it leads to a characterization within a constant gap without leaving an outage set contrary to the scheme by Ordentlich et al..
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
The Approximate Capacity Region of the Symmetric $K$-user Gaussian Interference Channel with Strong Interference 2016:1 IEEE Transactions on Information Theory
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Information Theory
Issue Date:
1-Mar-2016
DOI:
10.1109/TIT.2016.2536667
Type:
Article
ISSN:
0018-9448; 1557-9654
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7422790
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChaaban, Anasen
dc.contributor.authorSezgin, Aydinen
dc.date.accessioned2016-03-13T13:18:44Zen
dc.date.available2016-03-13T13:18:44Zen
dc.date.issued2016-03-01en
dc.identifier.citationThe Approximate Capacity Region of the Symmetric $K$-user Gaussian Interference Channel with Strong Interference 2016:1 IEEE Transactions on Information Theoryen
dc.identifier.issn0018-9448en
dc.identifier.issn1557-9654en
dc.identifier.doi10.1109/TIT.2016.2536667en
dc.identifier.urihttp://hdl.handle.net/10754/601294en
dc.description.abstractThe symmetric K-user interference channel is studied with the goal of characterizing its capacity region in the strong interference regime within a constant gap. The achievable rate region of a scheme combining rate-splitting at the transmitters and interference alignment and successive decoding/computation at the receivers is derived. Next it is shown that this scheme achieves the so-called greedy-max corner points of the capacity region within a constant gap. By combining this result with previous results by Ordentlich et al. on the sum-capacity of the symmetric interference channel, a constant gap characterization of the capacity region for the strong interference regime is obtained. This leads to the first approximate characterization of the capacity region of the symmetric K-user IC. Furthermore, a new scheme that achieves the sum-capacity of the channel in the strong interference regime within a constant gap is also proposed, and the corresponding gap is calculated. The advantage of the new scheme is that it leads to a characterization within a constant gap without leaving an outage set contrary to the scheme by Ordentlich et al..en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7422790en
dc.rights(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.subjectInterference channelen
dc.subjectcapacity region approximationen
dc.subjectinterference alignmenten
dc.subjectlattice codingen
dc.subjectstrong interferenceen
dc.titleThe Approximate Capacity Region of the Symmetric $K$-user Gaussian Interference Channel with Strong Interferenceen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Transactions on Information Theoryen
dc.eprint.versionPost-printen
dc.contributor.institutionInstitute of Digital Communication Systems, Ruhr-Universitat Bochum (RUB), Universitatsstrasse 150, 44780 Bochum, Germanyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorChaaban, Anasen
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