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dc.contributor.authorHanif, Muhammad
dc.contributor.authorYang, Hong-Chuan
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2017-06-21T06:48:05Z
dc.date.available2017-06-21T06:48:05Z
dc.date.issued2017-03-31
dc.identifier.citationHanif M, Yang H-C, Alouini M-S (2017) Transmit Antenna Selection for Power Adaptive Underlay Cognitive Radio With Instantaneous Interference Constraint. IEEE Transactions on Communications 65: 2357–2367. Available: http://dx.doi.org/10.1109/TCOMM.2017.2690285.
dc.identifier.issn0090-6778
dc.identifier.doi10.1109/TCOMM.2017.2690285
dc.identifier.urihttp://hdl.handle.net/10754/625115
dc.description.abstractThe high hardware cost associated with multiple antennas at the secondary transmitter of an underlay cognitive radio (CR) can be reduced by antenna selection. This paper analyzes different power adaptive transmit antenna selection (TAS) schemes for an underlay CR, which ensure that the instantaneous interference caused by the secondary transmitter to the primary receiver is below a predetermined level. We consider the optimal continuous power adaptive TAS and present a low-complexity antenna and power level selection scheme, named sequential antenna and power level selection scheme (SAPS), for discrete power adaptation. Exact statistical characterizations of the signal-to-interference plus noise ratio at the secondary receiver are derived for the considered schemes. Based on the newly derived statistics, we prove that the considered schemes achieve the highest diversity order equaling the number of antennas at the secondary transmitter. Further, we also derive a closed-form expression of the ergodic capacity for the underlay CR with SAPS scheme. Finally, we show that the proposed scheme outperforms existing schemes in terms of ergodic capacity.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/document/7890994/
dc.subjectAdaptive arrays
dc.subjectCognitive radio
dc.subjectInterference constraints
dc.subjectReceiving antennas
dc.subjectTransmitting antennas
dc.titleTransmit Antenna Selection for Power Adaptive Underlay Cognitive Radio with Instantaneous Interference Constraint
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Transactions on Communications
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada
kaust.personAlouini, Mohamed-Slim
dc.date.published-online2017-03-31
dc.date.published-print2017-06


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