Proportional fair scheduling with reduced feedback

Patachaianand, R; Sandrasegaran, K

Proportional fair scheduling with reduced feedback

Patachaianand, R Sandrasegaran, K

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Publication Type:: Journal Article
Citation:: Electronics Letters, 2009, 45 (9), pp. 472 - 473
Issue Date:: 2009-05-05

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Field	Value	Language
dc.contributor.author	Patachaianand, R	en_US
dc.contributor.author	Sandrasegaran, K https://orcid.org/0000-0003-1270-5756	en_US
dc.date.issued	2009-05-05	en_US
dc.identifier.citation	Electronics Letters, 2009, 45 (9), pp. 472 - 473	en_US
dc.identifier.issn	0013-5194	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9231
dc.description.abstract	An opportunistic feedback technique is proposed for proportional fair (PF) scheduling in a downlink multi-user system. This technique requires each mobile station, the scheduling metric of which is higher than a threshold, to send one-bit feedback for PF scheduling. The scheduler determines the optimal modulation and coding scheme for a scheduled user based on channel quality indicator (CQI) update, which is sent on a longer period than the scheduling period. The simulation results indicate that PF scheduling with the proposed update scheme can achieve similar performance as PF scheduling with full CQI feedback. The feedback overhead can be reduced in comparison with typical PF scheduling provided that an optimal CQI update period is chosen. © The Institution of Engineering and Technology 2009.	en_US
dc.relation.ispartof	Electronics Letters	en_US
dc.relation.isbasedon	10.1049/el.2009.3522	en_US
dc.subject.classification	Electrical & Electronic Engineering	en_US
dc.title	Proportional fair scheduling with reduced feedback	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	45	en_US
utslib.for	0801 Artificial Intelligence and Image Processing	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
utslib.copyright.status	open_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	45	en_US

Abstract:

An opportunistic feedback technique is proposed for proportional fair (PF) scheduling in a downlink multi-user system. This technique requires each mobile station, the scheduling metric of which is higher than a threshold, to send one-bit feedback for PF scheduling. The scheduler determines the optimal modulation and coding scheme for a scheduled user based on channel quality indicator (CQI) update, which is sent on a longer period than the scheduling period. The simulation results indicate that PF scheduling with the proposed update scheme can achieve similar performance as PF scheduling with full CQI feedback. The feedback overhead can be reduced in comparison with typical PF scheduling provided that an optimal CQI update period is chosen. © The Institution of Engineering and Technology 2009.

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