Primary user localisation and uplink resource allocation in orthogonal frequency division multiple access cognitive radio systems

Handle URI:
http://hdl.handle.net/10754/564173
Title:
Primary user localisation and uplink resource allocation in orthogonal frequency division multiple access cognitive radio systems
Authors:
Nam, Haewoon; Saeed, Nasir; Ben-Ghorbel, Mand; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In cognitive radio networks, secondary users (SUs) can share spectrum with primary users (PUs) under the condition that no interference is caused to the PUs. To evaluate the interference imposed to the PUs, the cognitive systems discussed in the literature usually assume that the channel state information (CSI) of the link from a secondary transmitter to a primary receiver (interference link) is known at the secondary transmitter. However, this assumption may often be impractical in cognitive radio systems, since the PUs need to be oblivious to the presence of the SUs. The authors first discuss PU localisation and then introduce an uplink resource allocation algorithm for orthogonal frequency division multiple access-based cognitive radio systems, where relative location information between primary and SUs is used instead of CSI of the interference link to estimate the interference. Numerical and simulation results show that it is indeed effective to use location information as a part of resource allocation and thus a near-optimal capacity is achieved. © The Institution of Engineering and Technology 2015.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institution of Engineering and Technology (IET)
Journal:
IET Communications
Issue Date:
21-May-2015
DOI:
10.1049/iet-com.2014.1002
Type:
Article
ISSN:
17518628
Sponsors:
This work is an extended version of the paper presented in Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), Cannes, France, June 2010. The work of M. -S. Alouini was supported by the Qatar National Research Fund (a member of Qatar Foundation) under NPRP Grant NPRP 5-250-2-087. The statements made herein are solely the responsibility of the authors. The work of H. Nam was supported by the MSIP (Ministry of Science, ICT and Future Planning), Korea, under ICT/SW Creative Research Program (NIPA-2014-H0509-14-1003) supervised by the NIPA (National IT Industry Promotion Agency).
Appears in Collections:
Articles; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorNam, Haewoonen
dc.contributor.authorSaeed, Nasiren
dc.contributor.authorBen-Ghorbel, Manden
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T12:35:05Zen
dc.date.available2015-08-03T12:35:05Zen
dc.date.issued2015-05-21en
dc.identifier.issn17518628en
dc.identifier.doi10.1049/iet-com.2014.1002en
dc.identifier.urihttp://hdl.handle.net/10754/564173en
dc.description.abstractIn cognitive radio networks, secondary users (SUs) can share spectrum with primary users (PUs) under the condition that no interference is caused to the PUs. To evaluate the interference imposed to the PUs, the cognitive systems discussed in the literature usually assume that the channel state information (CSI) of the link from a secondary transmitter to a primary receiver (interference link) is known at the secondary transmitter. However, this assumption may often be impractical in cognitive radio systems, since the PUs need to be oblivious to the presence of the SUs. The authors first discuss PU localisation and then introduce an uplink resource allocation algorithm for orthogonal frequency division multiple access-based cognitive radio systems, where relative location information between primary and SUs is used instead of CSI of the interference link to estimate the interference. Numerical and simulation results show that it is indeed effective to use location information as a part of resource allocation and thus a near-optimal capacity is achieved. © The Institution of Engineering and Technology 2015.en
dc.description.sponsorshipThis work is an extended version of the paper presented in Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), Cannes, France, June 2010. The work of M. -S. Alouini was supported by the Qatar National Research Fund (a member of Qatar Foundation) under NPRP Grant NPRP 5-250-2-087. The statements made herein are solely the responsibility of the authors. The work of H. Nam was supported by the MSIP (Ministry of Science, ICT and Future Planning), Korea, under ICT/SW Creative Research Program (NIPA-2014-H0509-14-1003) supervised by the NIPA (National IT Industry Promotion Agency).en
dc.publisherInstitution of Engineering and Technology (IET)en
dc.titlePrimary user localisation and uplink resource allocation in orthogonal frequency division multiple access cognitive radio systemsen
dc.typeArticleen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIET Communicationsen
dc.contributor.institutionDepartment of Electronics and Communication Engineering, Hanyang UniversityAnsan, South Koreaen
kaust.authorAlouini, Mohamed-Slimen
kaust.authorBen-Ghorbel, Manden
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