Spectrum sharing opportunities of full-duplex systems using improper Gaussian signaling

Handle URI:
http://hdl.handle.net/10754/594846
Title:
Spectrum sharing opportunities of full-duplex systems using improper Gaussian signaling
Authors:
Gaafar, Mohamed ( 0000-0003-2915-644X ) ; Amin, Osama; Abediseid, Walid; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Sharing the licensed spectrum of full-duplex (FD) primary users (PU) brings strict limitations on the underlay cognitive radio operation. Particularly, the self interference may overwhelm the PU receiver and limit the opportunity of secondary users (SU) to access the spectrum. Improper Gaussian signaling (IGS) has demonstrated its superiority in improving the performance of interference channel systems. Throughout this paper, we assume a FD PU pair that uses proper Gaussian signaling (PGS), and a half-duplex SU pair that uses IGS. The objective is to maximize the SU instantaneous achievable rate while meeting the PU quality-of-service. To this end, we propose a simplified algorithm that optimizes the SU signal parameters, i.e, the transmit power and the circularity coefficient, which is a measure of the degree of impropriety of the SU signal, to achieve the design objective. Numerical results show the merits of adopting IGS compared with PGS for the SU especially with the existence of week PU direct channels and/or strong SU interference channels.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
Conference/Event name:
Personal, Indoor, and Mobile Radio Communications (PIMRC), 2015 IEEE 26th Annual International Symposium on
Issue Date:
Aug-2015
DOI:
10.1109/PIMRC.2015.7343303
Type:
Conference Paper
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7343303
Appears in Collections:
Conference Papers; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorGaafar, Mohameden
dc.contributor.authorAmin, Osamaen
dc.contributor.authorAbediseid, Waliden
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-01-26T10:56:42Zen
dc.date.available2016-01-26T10:56:42Zen
dc.date.issued2015-08en
dc.identifier.doi10.1109/PIMRC.2015.7343303en
dc.identifier.urihttp://hdl.handle.net/10754/594846en
dc.description.abstractSharing the licensed spectrum of full-duplex (FD) primary users (PU) brings strict limitations on the underlay cognitive radio operation. Particularly, the self interference may overwhelm the PU receiver and limit the opportunity of secondary users (SU) to access the spectrum. Improper Gaussian signaling (IGS) has demonstrated its superiority in improving the performance of interference channel systems. Throughout this paper, we assume a FD PU pair that uses proper Gaussian signaling (PGS), and a half-duplex SU pair that uses IGS. The objective is to maximize the SU instantaneous achievable rate while meeting the PU quality-of-service. To this end, we propose a simplified algorithm that optimizes the SU signal parameters, i.e, the transmit power and the circularity coefficient, which is a measure of the degree of impropriety of the SU signal, to achieve the design objective. Numerical results show the merits of adopting IGS compared with PGS for the SU especially with the existence of week PU direct channels and/or strong SU interference channels.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7343303en
dc.titleSpectrum sharing opportunities of full-duplex systems using improper Gaussian signalingen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journal2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)en
dc.conference.dateAug. 30 2015-Sept. 2 2015en
dc.conference.namePersonal, Indoor, and Mobile Radio Communications (PIMRC), 2015 IEEE 26th Annual International Symposium onen
dc.conference.locationHong Kongen
dc.eprint.versionPost-printen
kaust.authorGaafar, Mohameden
kaust.authorAmin, Osamaen
kaust.authorAbediseid, Waliden
kaust.authorAlouini, Mohamed-Slimen
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