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dc.contributor.authorBouida, Zied
dc.contributor.authorGhrayeb, Ali A.
dc.contributor.authorQaraqe, Khalid A.
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-04T07:14:19Z
dc.date.available2015-08-04T07:14:19Z
dc.date.issued2013-06
dc.identifier.isbn9781467355773
dc.identifier.doi10.1109/SPAWC.2013.6612092
dc.identifier.urihttp://hdl.handle.net/10754/564739
dc.description.abstractWe propose three adaptive transmission techniques aiming to maximize the capacity of a multiple-input-single-output (MISO) secondary system under the scenario of an underlay cognitive radio network. In the first scheme, namely the best antenna selection (BAS) scheme, the antenna maximizing the capacity of the secondary link is used for transmission. We then propose an orthogonal space time bloc code (OSTBC) transmission scheme using the Alamouti scheme with transmit antenna selection (TAS), namely the TAS/STBC scheme. The performance improvement offered by this scheme comes at the expense of an increased complexity and delay when compared to the BAS scheme. As a compromise between these schemes, we propose a hybrid scheme using BAS when only one antenna verifies the interference condition and TAS/STBC when two or more antennas are illegible for communication. We first derive closed-form expressions of the statistics of the received signal-to-interference-and-noise ratio (SINR) at the secondary receiver (SR). These results are then used to analyze the performance of the proposed techniques in terms of the average spectral efficiency, the average number of transmit antennas, and the average bit error rate (BER). This performance is then illustrated via selected numerical examples. © 2013 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectAdaptive modulation
dc.subjectspace-time bloc codes
dc.subjectspectrum sharing system
dc.subjecttransmit antenna selection
dc.titleAdaptive transmission schemes for MISO spectrum sharing systems
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journal2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
dc.conference.date16 June 2013 through 19 June 2013
dc.conference.name2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013
dc.conference.locationDarmstadt
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Concordia University, Montreal, Canada
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas AandM University at Qatar, Doha, Qatar
kaust.personAlouini, Mohamed-Slim


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