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dc.contributor.authorSayed, Mostafa M.
dc.contributor.authorAbdallah, Mohamed M.
dc.contributor.authorAlouini, Mohamed-Slim
dc.contributor.authorQaraqe, Khalid A.
dc.date.accessioned2015-08-04T06:25:27Z
dc.date.available2015-08-04T06:25:27Z
dc.date.issued2011-05
dc.identifier.isbn9781424483310
dc.identifier.issn15502252
dc.identifier.doi10.1109/VETECS.2011.5956381
dc.identifier.urihttp://hdl.handle.net/10754/564377
dc.description.abstractIn this paper, we study applying dual branch transmit switch-and-stay combining (SSC) technique for underlay cognitive radio (UCR) networks. In UCR, the secondary user is allowed to share the spectrum with the primary (licensed) user under the condition that interference at the primary receiver is below a predetermined threshold. Assuming binary phaseshift keying (BPSK) modulation and Rayleigh fading channels, we develop a closed form expression for the average bit error rate (BER) of the secondary link as a function of the switching threshold. We then find a closed form expression for the optimal switching threshold in the sense of minimizing the average BER. For the sake of comparison we derive an expression for the average BER of the dual branch transmit selection combining (SC) technique. We finally investigate the effect of correlation between secondary and interference channels on the average BER and the associated optimal switching threshold. © 2011 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectMultiple antenna systems
dc.subjectTransmit selection diversity
dc.subjectTransmit switched diversity
dc.subjectUnderlay cognitive radio
dc.titleDual branch transmit switch-and-stay diversity for underlay cognitive networks
dc.typeConference Paper
dc.contributor.departmentCommunication Theory Lab
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journal2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)
dc.conference.date15 May 2011 through 18 May 2011
dc.conference.name2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring
dc.conference.locationBudapest
dc.contributor.institutionVarkon Semiconductors, Maadi, Cairo, Egypt
dc.contributor.institutionElectrical and Computer Engineering, Texas A and M University at Qatar, PO Box 23874, Doha, Qatar
kaust.personAlouini, Mohamed-Slim


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