Utility-based resource allocation for interference limited OFDMA cooperative relay networks

Odeh, N; Abolhasan, M; Safaei, F; Franklin, DR; Mao, G

Utility-based resource allocation for interference limited OFDMA cooperative relay networks

Odeh, N

Abolhasan, M

Safaei, F Franklin, DR

Mao, G

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Publication Type:: Journal Article
Citation:: Physical Communication, 2016, 20 pp. 74 - 84
Issue Date:: 2016-09-01

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Field	Value	Language
dc.contributor.author	Odeh, N https://orcid.org/0000-0003-4335-2500	en_US
dc.contributor.author	Abolhasan, M https://orcid.org/0000-0002-4282-6666	en_US
dc.contributor.author	Safaei, F	en_US
dc.contributor.author	Franklin, DR https://orcid.org/0000-0002-9563-5943	en_US
dc.contributor.author	Mao, G https://orcid.org/0000-0002-3598-4949	en_US
dc.date.available	2020-05-25T19:06:28Z
dc.date.issued	2016-09-01	en_US
dc.identifier.citation	Physical Communication, 2016, 20 pp. 74 - 84	en_US
dc.identifier.issn	1874-4907	en_US
dc.identifier.uri	http://hdl.handle.net/10453/60629
dc.description.abstract	© 2016 Elsevier B.V. This paper proposes a utility-based resource allocation algorithm for the uplink OFDMA Inter-cell Interference (ICI) limited cooperative relay network. Full channel state information (CSI) is assumed to be available at the resource controller at initial stage, then the work is extended to consider more realistic assumption, i.e., only partial channel state information (PCSI) is available. The proposed algorithm aims to maximize the total system utility while simultaneously satisfying the individual user's minimum data rate requirements. In the proposed algorithm, relay selection is initially performed based on the consideration of ICI. Then, subcarrier allocation is performed to achieve maximum utility assuming equal power allocation. Finally, based on the amount of ICI, a modified water-filling power distribution algorithm is proposed and used to optimize the per-carrier power allocation across the allocated set of subcarriers. The results show that, compared to conventional algorithms, the proposed algorithm significantly improves system performance in terms of total sum data rate, outage probability and fairness.	en_US
dc.relation.ispartof	Physical Communication	en_US
dc.relation.isbasedon	10.1016/j.phycom.2016.05.001	en_US
dc.title	Utility-based resource allocation for interference limited OFDMA cooperative relay networks	en_US
dc.type	Journal Article
utslib.citation.volume	20	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
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
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	20	en_US

Abstract:

© 2016 Elsevier B.V. This paper proposes a utility-based resource allocation algorithm for the uplink OFDMA Inter-cell Interference (ICI) limited cooperative relay network. Full channel state information (CSI) is assumed to be available at the resource controller at initial stage, then the work is extended to consider more realistic assumption, i.e., only partial channel state information (PCSI) is available. The proposed algorithm aims to maximize the total system utility while simultaneously satisfying the individual user's minimum data rate requirements. In the proposed algorithm, relay selection is initially performed based on the consideration of ICI. Then, subcarrier allocation is performed to achieve maximum utility assuming equal power allocation. Finally, based on the amount of ICI, a modified water-filling power distribution algorithm is proposed and used to optimize the per-carrier power allocation across the allocated set of subcarriers. The results show that, compared to conventional algorithms, the proposed algorithm significantly improves system performance in terms of total sum data rate, outage probability and fairness.

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http://hdl.handle.net/10453/60629