Algorithm for re-use of shadowed CRs as relays for improving cooperative sensing performance

Dinh, MT; Nguyen, TQ; Cong, L; Nguyen, D

Algorithm for re-use of shadowed CRs as relays for improving cooperative sensing performance

Dinh, MT Nguyen, TQ Cong, L

Nguyen, D

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Publisher:: IEEE
Publication Type:: Conference Proceeding
Citation:: TENCON 2012 - 2012 IEEE Region 10 Conference, 2012, pp. 1 - 6
Issue Date:: 2012-01

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Field	Value	Language
dc.contributor.author	Dinh, MT	en_US
dc.contributor.author	Nguyen, TQ	en_US
dc.contributor.author	Cong, L https://orcid.org/0000-0003-4546-3378	en_US
dc.contributor.author	Nguyen, D	en_US
dc.contributor.editor	NA	en_US
dc.date	2012-11-19	en_US
dc.date.issued	2012-01	en_US
dc.identifier.citation	TENCON 2012 - 2012 IEEE Region 10 Conference, 2012, pp. 1 - 6	en_US
dc.identifier.isbn	978-1-4673-4823-2	en_US
dc.identifier.uri	http://hdl.handle.net/10453/31633
dc.description.abstract	In cooperative spectrum sensing, information from deeply faded local cognitive radios (CRs) needs to be eliminated from contributing to the fusion pool at the fusion center. Most current works on the subject unrealistically assume that the reporting channels between the CRs and the fusion center are free of loss and fading. In order not to waste those deeply faded CRs, this paper proposes an efficient algorithm to re-use them by reassigning them to act as cooperative diversity relays to assist the surviving CRs in combatting outages due to Suzuki fading in the reporting channel. The algorithm involves the pairing of a surviving CR to a relay CR so as to select the lowest outage probability of the resulting cooperative diversity relaying network. The paper proposes a closed-form and accurate approximation for the outage probability of such a network in the composite Rayleigh-lognormal fading channel, thus rendering fast and simple execution of the pairing algorithm.	en_US
dc.publisher	IEEE	en_US
dc.relation.ispartof	TENCON 2012 - 2012 IEEE Region 10 Conference	en_US
dc.relation.ispartof	TENCON 2012	en_US
dc.relation.isbasedon	10.1109/TENCON.2012.6412305	en_US
dc.rights	© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.	en_US
dc.title	Algorithm for re-use of shadowed CRs as relays for improving cooperative sensing performance	en_US
dc.type	Conference Proceeding
utslib.location	Piscataway, NJ	en_US
utslib.location.activity	Cebu	en_US
utslib.for	08 Information and Computing Sciences	en_US
dc.location.activity	Cebu
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	Piscataway, NJ	en_US
pubs.start-date	2012-11-19	en_US

Abstract:

In cooperative spectrum sensing, information from deeply faded local cognitive radios (CRs) needs to be eliminated from contributing to the fusion pool at the fusion center. Most current works on the subject unrealistically assume that the reporting channels between the CRs and the fusion center are free of loss and fading. In order not to waste those deeply faded CRs, this paper proposes an efficient algorithm to re-use them by reassigning them to act as cooperative diversity relays to assist the surviving CRs in combatting outages due to Suzuki fading in the reporting channel. The algorithm involves the pairing of a surviving CR to a relay CR so as to select the lowest outage probability of the resulting cooperative diversity relaying network. The paper proposes a closed-form and accurate approximation for the outage probability of such a network in the composite Rayleigh-lognormal fading channel, thus rendering fast and simple execution of the pairing algorithm.

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http://hdl.handle.net/10453/31633