On hybrid cooperation in underlay cognitive radio networks

Handle URI:
http://hdl.handle.net/10754/562945
Title:
On hybrid cooperation in underlay cognitive radio networks
Authors:
Mahmood, Nurul Huda; Yilmaz, Ferkan; Øien, Geir Egil; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Cooperative communication is a promising strategy to enhance the performance of a communication network as it helps to improve the coverage area and the outage performance. However, such enhancement comes at the expense of increased resource utilization, which is undesirable; more so in the case of opportunistic wireless systems such as cognitive radio networks. In order to balance the performance gains from cooperative communication against the possible over-utilization of resources, we propose and analyze an adaptive-cooperation technique for underlay cognitive radio networks, termed as hybrid-cooperation. Under the proposed cooperation scheme, secondary users in a cognitive radio network cooperate adaptively to enhance the spectral efficiency and the error performance of the network. The bit error rate, the spectral efficiency and the outage performance of the network under the proposed hybrid cooperation scheme with amplify-and-forward relaying are analyzed in this paper, and compared against conventional cooperation technique. Findings of the analytical performance analyses are further validated numerically through selected computer-based Monte-Carlo simulations. The proposed scheme is found to achieve significantly better performance in terms of the spectral efficiency and the bit error rate, compared to the conventional amplify-and-forward cooperation scheme. © 2013 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Physical Sciences and Engineering (PSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Wireless Communications
Issue Date:
Sep-2013
DOI:
10.1109/TWC.2013.081413.121516
Type:
Article
ISSN:
15361276
Sponsors:
N. H. Mahmood was supported in part by the Research Council of Norway (NFR) under the NORDITE/VERDIKT program, Project CROPS2 (Grant 181530/S10), in part by KAUST, and in part by AAU. The major part of this work was carried out while he was a student at NTNU.The work of M.-S. Alouini was funded by an NPRP grant from Qatar National Research Fund (QNRF) (a member of Qatar Foundation).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMahmood, Nurul Hudaen
dc.contributor.authorYilmaz, Ferkanen
dc.contributor.authorØien, Geir Egilen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T11:16:34Zen
dc.date.available2015-08-03T11:16:34Zen
dc.date.issued2013-09en
dc.identifier.issn15361276en
dc.identifier.doi10.1109/TWC.2013.081413.121516en
dc.identifier.urihttp://hdl.handle.net/10754/562945en
dc.description.abstractCooperative communication is a promising strategy to enhance the performance of a communication network as it helps to improve the coverage area and the outage performance. However, such enhancement comes at the expense of increased resource utilization, which is undesirable; more so in the case of opportunistic wireless systems such as cognitive radio networks. In order to balance the performance gains from cooperative communication against the possible over-utilization of resources, we propose and analyze an adaptive-cooperation technique for underlay cognitive radio networks, termed as hybrid-cooperation. Under the proposed cooperation scheme, secondary users in a cognitive radio network cooperate adaptively to enhance the spectral efficiency and the error performance of the network. The bit error rate, the spectral efficiency and the outage performance of the network under the proposed hybrid cooperation scheme with amplify-and-forward relaying are analyzed in this paper, and compared against conventional cooperation technique. Findings of the analytical performance analyses are further validated numerically through selected computer-based Monte-Carlo simulations. The proposed scheme is found to achieve significantly better performance in terms of the spectral efficiency and the bit error rate, compared to the conventional amplify-and-forward cooperation scheme. © 2013 IEEE.en
dc.description.sponsorshipN. H. Mahmood was supported in part by the Research Council of Norway (NFR) under the NORDITE/VERDIKT program, Project CROPS2 (Grant 181530/S10), in part by KAUST, and in part by AAU. The major part of this work was carried out while he was a student at NTNU.The work of M.-S. Alouini was funded by an NPRP grant from Qatar National Research Fund (QNRF) (a member of Qatar Foundation).en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectamplify and forward relayingen
dc.subjectcooperative communicationen
dc.subjecthybrid cooperationen
dc.subjectUnderlay cognitive radio networken
dc.titleOn hybrid cooperation in underlay cognitive radio networksen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIEEE Transactions on Wireless Communicationsen
dc.contributor.institutionRadio Access Technology (RATE) Section, Department of Electronics Systems (ES), Aalborg University (AAU), Aalborg st-9220, Denmarken
dc.contributor.institutionDepartment of Electronics and Telecommunications, Norwegian University of Science and Technology (NTNU), Trondheim, NO-7491, Norwayen
kaust.authorYilmaz, Ferkanen
kaust.authorAlouini, Mohamed-Slimen
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