New resource allocation scheme for cognitive relay networks with opportunistic access

Zafar, A; Alouini, MS; Chen, Y; Radaydeh, RM

New resource allocation scheme for cognitive relay networks with opportunistic access

Zafar, A

Alouini, MS Chen, Y Radaydeh, RM

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Publication Type:: Conference Proceeding
Citation:: IEEE International Conference on Communications, 2012, pp. 5603 - 5607
Issue Date:: 2012-12-01

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Field	Value	Language
dc.contributor.author	Zafar, A https://orcid.org/0000-0001-8382-7625	en_US
dc.contributor.author	Alouini, MS	en_US
dc.contributor.author	Chen, Y	en_US
dc.contributor.author	Radaydeh, RM	en_US
dc.date.issued	2012-12-01	en_US
dc.identifier.citation	IEEE International Conference on Communications, 2012, pp. 5603 - 5607	en_US
dc.identifier.isbn	9781457720529	en_US
dc.identifier.issn	1550-3607	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119639
dc.description.abstract	In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution. © 2012 IEEE.	en_US
dc.relation.ispartof	IEEE International Conference on Communications	en_US
dc.relation.isbasedon	10.1109/ICC.2012.6364910	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	New resource allocation scheme for cognitive relay networks with opportunistic access	en_US
dc.type	Conference Proceeding
utslib.for	1005 Communications Technologies	en_US
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/Strength - CRIN - Realtime Information Networks
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution. © 2012 IEEE.

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http://hdl.handle.net/10453/119639