Cognitive two-way relay beamforming: Design with resilience to channel state uncertainties

Handle URI:
http://hdl.handle.net/10754/621244
Title:
Cognitive two-way relay beamforming: Design with resilience to channel state uncertainties
Authors:
Ubaidulla, P.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Aissa, Sonia
Abstract:
In this paper, we propose a robust distributed relay beamformer design for cognitive radio network operating under uncertainties in the available channel state information. The cognitive network consists of a pair of transceivers and a set of non-regenerative two-way relays that assist the communication between the transceiver pair. The secondary nodes share the spectrum with a licensed primary user node while ensuring that the interference to the primary receiver is maintained below a certain threshold. The proposed robust design maximizes the worst-case signal-to-interference-plus-noise ratio at the secondary transceivers while satisfying constraints on the interference to the primary user and on the total relay transmit power. Though the robust design problem is not a convex problem in its original form, we show that it can be reformulated as a convex optimization problem, which can be solved efficiently. Numerical results are provided and illustrate the merits of the proposed design for various operating conditions and parameters. © 2016 IEEE.
KAUST Department:
King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah Province, Saudi Arabia
Citation:
Ubaidulla P, Alouini M-S, Aissa S (2016) Cognitive two-way relay beamforming: Design with resilience to channel state uncertainties. 2016 IEEE International Conference on Communications (ICC). Available: http://dx.doi.org/10.1109/icc.2016.7511210.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2016 IEEE International Conference on Communications (ICC)
Conference/Event name:
2016 IEEE International Conference on Communications, ICC 2016
Issue Date:
26-Jul-2016
DOI:
10.1109/icc.2016.7511210
Type:
Conference Paper
Appears in Collections:
Conference Papers

Full metadata record

DC FieldValue Language
dc.contributor.authorUbaidulla, P.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorAissa, Soniaen
dc.date.accessioned2016-11-03T06:56:17Z-
dc.date.available2016-11-03T06:56:17Z-
dc.date.issued2016-07-26en
dc.identifier.citationUbaidulla P, Alouini M-S, Aissa S (2016) Cognitive two-way relay beamforming: Design with resilience to channel state uncertainties. 2016 IEEE International Conference on Communications (ICC). Available: http://dx.doi.org/10.1109/icc.2016.7511210.en
dc.identifier.doi10.1109/icc.2016.7511210en
dc.identifier.urihttp://hdl.handle.net/10754/621244-
dc.description.abstractIn this paper, we propose a robust distributed relay beamformer design for cognitive radio network operating under uncertainties in the available channel state information. The cognitive network consists of a pair of transceivers and a set of non-regenerative two-way relays that assist the communication between the transceiver pair. The secondary nodes share the spectrum with a licensed primary user node while ensuring that the interference to the primary receiver is maintained below a certain threshold. The proposed robust design maximizes the worst-case signal-to-interference-plus-noise ratio at the secondary transceivers while satisfying constraints on the interference to the primary user and on the total relay transmit power. Though the robust design problem is not a convex problem in its original form, we show that it can be reformulated as a convex optimization problem, which can be solved efficiently. Numerical results are provided and illustrate the merits of the proposed design for various operating conditions and parameters. © 2016 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleCognitive two-way relay beamforming: Design with resilience to channel state uncertaintiesen
dc.typeConference Paperen
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), Thuwal, Makkah Province, Saudi Arabiaen
dc.identifier.journal2016 IEEE International Conference on Communications (ICC)en
dc.conference.date22 May 2016 through 27 May 2016en
dc.conference.name2016 IEEE International Conference on Communications, ICC 2016en
dc.contributor.institutionInternational Institute of Information Technology (IIIT), Hyderabad, Indiaen
dc.contributor.institutionInstitut National de la Recherche Scientifique (INRS), University of Quebec, Montreal, QC, Canadaen
kaust.authorAlouini, Mohamed-Slimen
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