Outage analysis for underlay cognitive networks using incremental regenerative relaying

Handle URI:
http://hdl.handle.net/10754/562636
Title:
Outage analysis for underlay cognitive networks using incremental regenerative relaying
Authors:
Tourki, Kamel; Qaraqe, Khalid A.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Cooperative relay technology has recently been introduced into cognitive radio (CR) networks to enhance the network capacity, scalability, and reliability of end-to-end communication. In this paper, we investigate an underlay cognitive network where the quality of service (QoS) of the secondary link is maintained by triggering an opportunistic regenerative relaying once it falls under an unacceptable level. Analysis is conducted for two schemes, referred to as the channel-state information (CSI)-based and fault-tolerant schemes, respectively, where different amounts of CSI were considered. We first provide the exact cumulative distribution function (cdf) of the received signal-to-noise ratio (SNR) over each hop with colocated relays. Then, the cdf's are used to determine a very accurate closed-form expression for the outage probability for a transmission rate $R$. In a high-SNR region, a floor of the secondary outage probability occurs, and we derive its corresponding expression. We validate our analysis by showing that the simulation results coincide with our analytical results in Rayleigh fading channels. © 1967-2012 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
Journal:
IEEE Transactions on Vehicular Technology
Issue Date:
Feb-2013
DOI:
10.1109/TVT.2012.2222947
Type:
Article
ISSN:
00189545
Sponsors:
This publication was made possible by National Priorities Research Program under Grant 08-152-2-043 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The review of this paper was coordinated by Prof. H.-H. Chen.
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.authorTourki, Kamelen
dc.contributor.authorQaraqe, Khalid A.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T10:59:15Zen
dc.date.available2015-08-03T10:59:15Zen
dc.date.issued2013-02en
dc.identifier.issn00189545en
dc.identifier.doi10.1109/TVT.2012.2222947en
dc.identifier.urihttp://hdl.handle.net/10754/562636en
dc.description.abstractCooperative relay technology has recently been introduced into cognitive radio (CR) networks to enhance the network capacity, scalability, and reliability of end-to-end communication. In this paper, we investigate an underlay cognitive network where the quality of service (QoS) of the secondary link is maintained by triggering an opportunistic regenerative relaying once it falls under an unacceptable level. Analysis is conducted for two schemes, referred to as the channel-state information (CSI)-based and fault-tolerant schemes, respectively, where different amounts of CSI were considered. We first provide the exact cumulative distribution function (cdf) of the received signal-to-noise ratio (SNR) over each hop with colocated relays. Then, the cdf's are used to determine a very accurate closed-form expression for the outage probability for a transmission rate $R$. In a high-SNR region, a floor of the secondary outage probability occurs, and we derive its corresponding expression. We validate our analysis by showing that the simulation results coincide with our analytical results in Rayleigh fading channels. © 1967-2012 IEEE.en
dc.description.sponsorshipThis publication was made possible by National Priorities Research Program under Grant 08-152-2-043 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The review of this paper was coordinated by Prof. H.-H. Chen.en
dc.publisherInstitute of Electrical and Electronics Engineersen
dc.subjectIncremental regenerative relayingen
dc.subjectoutage analysisen
dc.subjectunderlay cognitive networksen
dc.titleOutage analysis for underlay cognitive networks using incremental regenerative relayingen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIEEE Transactions on Vehicular Technologyen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas A and M University at Qatar, Doha, Qataren
kaust.authorAlouini, Mohamed-Slimen
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