2.50
Hdl Handle:
http://hdl.handle.net/10547/225295
Title:
Multiuser scheduling in high speed downlink packet access
Authors:
Kwan, Raymond; Aydin, Mehmet Emin ( 0000-0002-4890-5648 ) ; Leung, Cyril; Zhang, J.
Abstract:
Multiuser scheduling is an important aspect in the performance optimisation of a wireless network as it allows multiple users to efficiently access a shared channel by exploiting multiuser diversity. For example, the 3GPP cellular standard supports multiuser scheduling in the high speed downlink packet access (HSDPA) feature. To perform efficient scheduling, channel state information (CSI) for users is required, and is obtained via their respective feedback channels. Multiuser scheduling is studied assuming the availability of perfect CSI, which would require a high bandwidth overhead. A more realistic imperfect CSI feedback in the form of a finite set of channel quality indicator values is assumed, as specified in the HSDPA standard. A global optimal approach and a simulated annealing (CSA) approach are used to solve the optimisation problem. Simulation results suggest that the performances of the two approaches are very close even though the complexity of the simulated annealing (SA) approach is much lower. The performance of a simple greedy approach is found to be significantly worse.
Citation:
Kwan, R., Aydin, M., Leung, C. & Zhang, J. (2009) 'Multiuser scheduling in high speed downlink packet access', IET Communications, 3 (8), pp.1363-70.
Publisher:
IET
Journal:
IET Communications
Issue Date:
Aug-2009
URI:
http://hdl.handle.net/10547/225295
DOI:
10.1049/iet-com.2008.0340
Additional Links:
http://link.aip.org/link/ICEOCW/v3/i8/p1363/s1&Agg=doi
Type:
Article
Language:
en
ISSN:
17518628
Appears in Collections:
Centre for Research in Distributed Technologies (CREDIT)

Full metadata record

DC FieldValue Language
dc.contributor.authorKwan, Raymonden_GB
dc.contributor.authorAydin, Mehmet Eminen_GB
dc.contributor.authorLeung, Cyrilen_GB
dc.contributor.authorZhang, J.en_GB
dc.date.accessioned2012-05-22T13:46:07Z-
dc.date.available2012-05-22T13:46:07Z-
dc.date.issued2009-08-
dc.identifier.citationKwan, R., Aydin, M., Leung, C. & Zhang, J. (2009) 'Multiuser scheduling in high speed downlink packet access', IET Communications, 3 (8), pp.1363-70.en_GB
dc.identifier.issn17518628-
dc.identifier.doi10.1049/iet-com.2008.0340-
dc.identifier.urihttp://hdl.handle.net/10547/225295-
dc.description.abstractMultiuser scheduling is an important aspect in the performance optimisation of a wireless network as it allows multiple users to efficiently access a shared channel by exploiting multiuser diversity. For example, the 3GPP cellular standard supports multiuser scheduling in the high speed downlink packet access (HSDPA) feature. To perform efficient scheduling, channel state information (CSI) for users is required, and is obtained via their respective feedback channels. Multiuser scheduling is studied assuming the availability of perfect CSI, which would require a high bandwidth overhead. A more realistic imperfect CSI feedback in the form of a finite set of channel quality indicator values is assumed, as specified in the HSDPA standard. A global optimal approach and a simulated annealing (CSA) approach are used to solve the optimisation problem. Simulation results suggest that the performances of the two approaches are very close even though the complexity of the simulated annealing (SA) approach is much lower. The performance of a simple greedy approach is found to be significantly worse.en_GB
dc.language.isoenen
dc.publisherIETen_GB
dc.relation.urlhttp://link.aip.org/link/ICEOCW/v3/i8/p1363/s1&Agg=doien_GB
dc.rightsArchived with thanks to IET Communicationsen_GB
dc.titleMultiuser scheduling in high speed downlink packet accessen
dc.typeArticleen
dc.identifier.journalIET Communicationsen_GB
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