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dc.contributor.authorAbdallah, Mohamed M.
dc.contributor.authorAlouini, Mohamed-Slim
dc.contributor.authorQaraqe, Khalid A.
dc.date.accessioned2015-08-04T06:25:52Z
dc.date.available2015-08-04T06:25:52Z
dc.date.issued2011-06
dc.identifier.isbn9781424493326
dc.identifier.doi10.1109/SPAWC.2011.5990377
dc.identifier.urihttp://hdl.handle.net/10754/564389
dc.description.abstractIn this paper, we develop a switch and examine transmit diversity algorithm for spectrum sharing cognitive networks. We consider a cognitive network composed of a primary link that employs constant rate and constant power transmission scheme with automatic-and-repeat request (ARQ) protocol, while the secondary link is composed of a fixed power multiple-antenna secondary transmitter and a single antenna receiver. Our objective is to develop a low complex transmit diversity algorithm at the secondary transmitter that maximizes the performance of the secondary link in terms of the effective throughput while maintaining a predetermined maximum loss in the packet rate of the primary link. In achieving this objective, we develop an algorithm that selects the best antenna, which maintains the quality of the secondary link in terms of signal-to-noise ratio above a specific threshold, based on overhearing the acknowledgment (ACK) and negative acknowledgment (NACK) feedback messages transmitted over the primary link. We also develop closed form expressions for the bit error rates and the effective throughput of the secondary link. © 2011 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.titleSwitch and examine transmit diversity for spectrum sharing systems
dc.typeConference Paper
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journal2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications
dc.conference.date26 June 2011 through 29 June 2011
dc.conference.name2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011
dc.conference.locationSan Francisco, CA
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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