Achievable rate of cognitive radio spectrum sharing MIMO channel with space alignment and interference temperature precoding

Handle URI:
http://hdl.handle.net/10754/564751
Title:
Achievable rate of cognitive radio spectrum sharing MIMO channel with space alignment and interference temperature precoding
Authors:
Sboui, Lokman ( 0000-0003-1134-4055 ) ; Ghazzai, Hakim ( 0000-0002-8636-4264 ) ; Rezki, Zouheir; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we investigate the spectral efficiency gain of an uplink Cognitive Radio (CR) Multi-Input MultiOutput (MIMO) system in which the Secondary/unlicensed User (SU) is allowed to share the spectrum with the Primary/licensed User (PU) using a specific precoding scheme to communicate with a common receiver. The proposed scheme exploits at the same time the free eigenmodes of the primary channel after a space alignment procedure and the interference threshold tolerated by the PU. In our work, we study the maximum achievable rate of the CR node after deriving an optimal power allocation with respect to an outage interference and an average power constraints. We, then, study a protection protocol that considers a fixed interference threshold. Applied to Rayleigh fading channels, we show, through numerical results, that our proposed scheme enhances considerably the cognitive achievable rate. For instance, in case of a perfect detection of the PU signal, after applying Successive Interference Cancellation (SIC), the CR rate remains non-zero for high Signal to Noise Ratio (SNR) which is usually impossible when we only use space alignment technique. In addition, we show that the rate gain is proportional to the allowed interference threshold by providing a fixed rate even in the high SNR range. © 2013 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2013 IEEE International Conference on Communications (ICC)
Conference/Event name:
2013 IEEE International Conference on Communications, ICC 2013
Issue Date:
Jun-2013
DOI:
10.1109/ICC.2013.6654937
Type:
Conference Paper
ISSN:
15503607
ISBN:
9781467331227
Appears in Collections:
Conference Papers; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorSboui, Lokmanen
dc.contributor.authorGhazzai, Hakimen
dc.contributor.authorRezki, Zouheiren
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:14:42Zen
dc.date.available2015-08-04T07:14:42Zen
dc.date.issued2013-06en
dc.identifier.isbn9781467331227en
dc.identifier.issn15503607en
dc.identifier.doi10.1109/ICC.2013.6654937en
dc.identifier.urihttp://hdl.handle.net/10754/564751en
dc.description.abstractIn this paper, we investigate the spectral efficiency gain of an uplink Cognitive Radio (CR) Multi-Input MultiOutput (MIMO) system in which the Secondary/unlicensed User (SU) is allowed to share the spectrum with the Primary/licensed User (PU) using a specific precoding scheme to communicate with a common receiver. The proposed scheme exploits at the same time the free eigenmodes of the primary channel after a space alignment procedure and the interference threshold tolerated by the PU. In our work, we study the maximum achievable rate of the CR node after deriving an optimal power allocation with respect to an outage interference and an average power constraints. We, then, study a protection protocol that considers a fixed interference threshold. Applied to Rayleigh fading channels, we show, through numerical results, that our proposed scheme enhances considerably the cognitive achievable rate. For instance, in case of a perfect detection of the PU signal, after applying Successive Interference Cancellation (SIC), the CR rate remains non-zero for high Signal to Noise Ratio (SNR) which is usually impossible when we only use space alignment technique. In addition, we show that the rate gain is proportional to the allowed interference threshold by providing a fixed rate even in the high SNR range. © 2013 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectAchievable Rateen
dc.subjectSpace alignment Interference Alignmenten
dc.subjectSpectrum Sharingen
dc.subjectSuccessive Interference Cancellationen
dc.subjectUnderlay Cognitive Radioen
dc.titleAchievable rate of cognitive radio spectrum sharing MIMO channel with space alignment and interference temperature precodingen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2013 IEEE International Conference on Communications (ICC)en
dc.conference.date9 June 2013 through 13 June 2013en
dc.conference.name2013 IEEE International Conference on Communications, ICC 2013en
dc.conference.locationBudapesten
kaust.authorSboui, Lokmanen
kaust.authorGhazzai, Hakimen
kaust.authorRezki, Zouheiren
kaust.authorAlouini, Mohamed-Slimen
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