Adaptive rate transmission for spectrum sharing system with quantized channel state information

Handle URI:
http://hdl.handle.net/10754/564365
Title:
Adaptive rate transmission for spectrum sharing system with quantized channel state information
Authors:
Abdallah, Mohamed M.; Salem, Ahmed H.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Qaraqe, Khalid A.
Abstract:
The capacity of a secondary link in spectrum sharing systems has been recently investigated in fading environments. In particular, the secondary transmitter is allowed to adapt its power and rate to maximize its capacity subject to the constraint of maximum interference level allowed at the primary receiver. In most of the literature, it was assumed that estimates of the channel state information (CSI) of the secondary link and the interference level are made available at the secondary transmitter via an infinite-resolution feedback links between the secondary/primary receivers and the secondary transmitter. However, the assumption of having infinite resolution feedback links is not always practical as it requires an excessive amount of bandwidth. In this paper we develop a framework for optimizing the performance of the secondary link in terms of the average spectral efficiency assuming quantized CSI available at the secondary transmitter. We develop a computationally efficient algorithm for optimally quantizing the CSI and finding the optimal power and rate employed at the cognitive transmitter for each quantized CSI level so as to maximize the average spectral efficiency. Our results give the number of bits required to represent the CSI sufficient to achieve almost the maximum average spectral efficiency attained using full knowledge of the CSI for Rayleigh fading channels. © 2011 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2011 45th Annual Conference on Information Sciences and Systems
Conference/Event name:
2011 45th Annual Conference on Information Sciences and Systems, CISS 2011
Issue Date:
Mar-2011
DOI:
10.1109/CISS.2011.5766156
Type:
Conference Paper
ISBN:
9781424498475
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.authorAbdallah, Mohamed M.en
dc.contributor.authorSalem, Ahmed H.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorQaraqe, Khalid A.en
dc.date.accessioned2015-08-04T06:25:04Zen
dc.date.available2015-08-04T06:25:04Zen
dc.date.issued2011-03en
dc.identifier.isbn9781424498475en
dc.identifier.doi10.1109/CISS.2011.5766156en
dc.identifier.urihttp://hdl.handle.net/10754/564365en
dc.description.abstractThe capacity of a secondary link in spectrum sharing systems has been recently investigated in fading environments. In particular, the secondary transmitter is allowed to adapt its power and rate to maximize its capacity subject to the constraint of maximum interference level allowed at the primary receiver. In most of the literature, it was assumed that estimates of the channel state information (CSI) of the secondary link and the interference level are made available at the secondary transmitter via an infinite-resolution feedback links between the secondary/primary receivers and the secondary transmitter. However, the assumption of having infinite resolution feedback links is not always practical as it requires an excessive amount of bandwidth. In this paper we develop a framework for optimizing the performance of the secondary link in terms of the average spectral efficiency assuming quantized CSI available at the secondary transmitter. We develop a computationally efficient algorithm for optimally quantizing the CSI and finding the optimal power and rate employed at the cognitive transmitter for each quantized CSI level so as to maximize the average spectral efficiency. Our results give the number of bits required to represent the CSI sufficient to achieve almost the maximum average spectral efficiency attained using full knowledge of the CSI for Rayleigh fading channels. © 2011 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleAdaptive rate transmission for spectrum sharing system with quantized channel state informationen
dc.typeConference Paperen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2011 45th Annual Conference on Information Sciences and Systemsen
dc.conference.date23 March 2011 through 25 March 2011en
dc.conference.name2011 45th Annual Conference on Information Sciences and Systems, CISS 2011en
dc.conference.locationBaltimore, MDen
dc.contributor.institutionElectrical and Computer Engineering, Texas A and M University at Qatar, PO Box 23874, Doha, Qataren
dc.contributor.institutionDepartment of Electronics and Electrical Communication, Cairo University, Giza, Egypten
kaust.authorAlouini, Mohamed-Slimen
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