Performance analysis of selective cooperation in underlay cognitive networks over Rayleigh channels

Handle URI:
http://hdl.handle.net/10754/564388
Title:
Performance analysis of selective cooperation in underlay cognitive networks over Rayleigh channels
Authors:
Hussain, Syed Imtiaz; Abdallah, Mohamed M.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Hasna, Mazen Omar; Qaraqe, Khalid A.
Abstract:
Underlay cognitive networks should follow strict interference thresholds to operate in parallel with primary networks. This constraint limits their transmission power and eventually the area of coverage. Therefore, it is very likely that the underlay networks will make use of relays to transmit signals to the distant secondary users. In this paper, we propose a secondary relay selection scheme which maximizes the end-to-end signal to noise ratio (SNR) for the secondary link while keeping the interference levels to the primary network below a certain threshold. We derive closed form expressions for the probability density function (PDF) of the SNR at the secondary destination, average bit error probability and outage probability. Analytical results are verified through simulations which also give insight about the benefits and tradeoffs of the selective cooperation in underlay cognitive networks. It is shown that, in contrast to non-cognitive selective cooperation, this scheme performs better in low SNR region for cognitive networks. © 2011 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications
Conference/Event name:
2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011
Issue Date:
Jun-2011
DOI:
10.1109/SPAWC.2011.5990375
Type:
Conference Paper
ISBN:
9781424493326
Appears in Collections:
Conference Papers; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHussain, Syed Imtiazen
dc.contributor.authorAbdallah, Mohamed M.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorHasna, Mazen Omaren
dc.contributor.authorQaraqe, Khalid A.en
dc.date.accessioned2015-08-04T06:25:50Zen
dc.date.available2015-08-04T06:25:50Zen
dc.date.issued2011-06en
dc.identifier.isbn9781424493326en
dc.identifier.doi10.1109/SPAWC.2011.5990375en
dc.identifier.urihttp://hdl.handle.net/10754/564388en
dc.description.abstractUnderlay cognitive networks should follow strict interference thresholds to operate in parallel with primary networks. This constraint limits their transmission power and eventually the area of coverage. Therefore, it is very likely that the underlay networks will make use of relays to transmit signals to the distant secondary users. In this paper, we propose a secondary relay selection scheme which maximizes the end-to-end signal to noise ratio (SNR) for the secondary link while keeping the interference levels to the primary network below a certain threshold. We derive closed form expressions for the probability density function (PDF) of the SNR at the secondary destination, average bit error probability and outage probability. Analytical results are verified through simulations which also give insight about the benefits and tradeoffs of the selective cooperation in underlay cognitive networks. It is shown that, in contrast to non-cognitive selective cooperation, this scheme performs better in low SNR region for cognitive networks. © 2011 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectcognitive radioen
dc.subjectoverlay networksen
dc.subjectrelay selection etc.en
dc.subjectunderlay networksen
dc.subjectuser cooperationen
dc.titlePerformance analysis of selective cooperation in underlay cognitive networks over Rayleigh channelsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communicationsen
dc.conference.date26 June 2011 through 29 June 2011en
dc.conference.name2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011en
dc.conference.locationSan Francisco, CAen
dc.contributor.institutionTexas A and M University at Qatar, Doha, Qataren
dc.contributor.institutionQatar University, Doha, Qataren
kaust.authorAlouini, Mohamed-Slimen
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