On Alternate Relaying with Improper Gaussian Signaling

Handle URI:
http://hdl.handle.net/10754/613015
Title:
On Alternate Relaying with Improper Gaussian Signaling
Authors:
Gaafar, Mohamed ( 0000-0003-2915-644X ) ; Amin, Osama ( 0000-0002-0026-5960 ) ; Ikhlef, Aissa; Chaaban, Anas ( 0000-0002-8713-5084 ) ; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this letter, we investigate the potential benefits of adopting improper Gaussian signaling (IGS) in a two-hop alternate relaying (AR) system. Given the known benefits of using IGS in interference-limited networks, we propose to use IGS to relieve the inter-relay interference (IRI) impact on the AR system assuming no channel state information is available at the source. In this regard, we assume that the two relays use IGS and the source uses proper Gaussian signaling (PGS). Then, we optimize the degree of impropriety of the relays signal, measured by the circularity coefficient, to maximize the total achievable rate. Simulation results show that using IGS yields a significant performance improvement over PGS, especially when the first hop is a bottleneck due to weak source-relay channel gains and/or strong IRI.
KAUST Department:
Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division
Citation:
On Alternate Relaying with Improper Gaussian Signaling 2016:1 IEEE Communications Letters
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Communications Letters
Issue Date:
6-Jun-2016
DOI:
10.1109/LCOMM.2016.2577029
Type:
Article
ISSN:
1089-7798
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7485889
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorGaafar, Mohameden
dc.contributor.authorAmin, Osamaen
dc.contributor.authorIkhlef, Aissaen
dc.contributor.authorChaaban, Anasen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-06-14T09:14:26Z-
dc.date.available2016-06-14T09:14:26Z-
dc.date.issued2016-06-06-
dc.identifier.citationOn Alternate Relaying with Improper Gaussian Signaling 2016:1 IEEE Communications Lettersen
dc.identifier.issn1089-7798-
dc.identifier.doi10.1109/LCOMM.2016.2577029-
dc.identifier.urihttp://hdl.handle.net/10754/613015-
dc.description.abstractIn this letter, we investigate the potential benefits of adopting improper Gaussian signaling (IGS) in a two-hop alternate relaying (AR) system. Given the known benefits of using IGS in interference-limited networks, we propose to use IGS to relieve the inter-relay interference (IRI) impact on the AR system assuming no channel state information is available at the source. In this regard, we assume that the two relays use IGS and the source uses proper Gaussian signaling (PGS). Then, we optimize the degree of impropriety of the relays signal, measured by the circularity coefficient, to maximize the total achievable rate. Simulation results show that using IGS yields a significant performance improvement over PGS, especially when the first hop is a bottleneck due to weak source-relay channel gains and/or strong IRI.en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7485889en
dc.rights(c) 2016 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.subjectImproper Gaussian signalingen
dc.subjectalternate relayingen
dc.subjectasymmetric complex signalingen
dc.subjectdecode-andforwarden
dc.subjectinter-relay-interferenceen
dc.subjecttwo-path relayingen
dc.titleOn Alternate Relaying with Improper Gaussian Signalingen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Science and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Communications Lettersen
dc.eprint.versionPost-printen
dc.contributor.institutionSchool of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UKen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorGaafar, Mohameden
kaust.authorAmin, Osamaen
kaust.authorChaaban, Anasen
kaust.authorAlouini, Mohamed-Slimen
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