Multiuser Diversity with Capture in OFDMA systems with clustered feedback

Li, H; Guo, Q; Fang, L; Huang, D

Multiuser Diversity with Capture in OFDMA systems with clustered feedback

Li, H

Guo, Q Fang, L Huang, D

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Publication Type:: Conference Proceeding
Citation:: 2012 International Conference on Wireless Communications and Signal Processing, WCSP 2012, 2012
Issue Date:: 2012-12-01

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Field	Value	Language
dc.contributor.author	Li, H https://orcid.org/0000-0001-9996-9695	en_US
dc.contributor.author	Guo, Q	en_US
dc.contributor.author	Fang, L	en_US
dc.contributor.author	Huang, D	en_US
dc.date.issued	2012-12-01	en_US
dc.identifier.citation	2012 International Conference on Wireless Communications and Signal Processing, WCSP 2012, 2012	en_US
dc.identifier.isbn	9781467358293	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121155
dc.description.abstract	In this paper, we propose a cluster-based feedback protocol for multiuser orthogonal frequency-division multiple-access (OFDMA) systems, where the capture effect is employed in each cluster to reduce the enormous system overhead induced by polling channel-state information. Then, we analyze the system throughput performance of the proposed feedback protocol. Compared with the full feedback scheme in the literature, numerical simulations show that the proposed protocol with clustered feedback in OFDMA systems achieves higher system throughput by employing the capture effect with limited feedback overhead, when the number of users is reasonably large. Moreover, compared with our previous protocol of Multiuser Diversity with Capture, the proposed one additionally exploits multiuser diversity in the frequency domain, thereby achieving better throughput performance as shown by the simulation results. © 2012 IEEE.	en_US
dc.relation.ispartof	2012 International Conference on Wireless Communications and Signal Processing, WCSP 2012	en_US
dc.relation.isbasedon	10.1109/WCSP.2012.6542946	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Multiuser Diversity with Capture in OFDMA systems with clustered feedback	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
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

In this paper, we propose a cluster-based feedback protocol for multiuser orthogonal frequency-division multiple-access (OFDMA) systems, where the capture effect is employed in each cluster to reduce the enormous system overhead induced by polling channel-state information. Then, we analyze the system throughput performance of the proposed feedback protocol. Compared with the full feedback scheme in the literature, numerical simulations show that the proposed protocol with clustered feedback in OFDMA systems achieves higher system throughput by employing the capture effect with limited feedback overhead, when the number of users is reasonably large. Moreover, compared with our previous protocol of Multiuser Diversity with Capture, the proposed one additionally exploits multiuser diversity in the frequency domain, thereby achieving better throughput performance as shown by the simulation results. © 2012 IEEE.

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http://hdl.handle.net/10453/121155