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Article: A low-complexity QoS-aware proportional fair multicarrier scheduling algorithm for OFDM systems

TitleA low-complexity QoS-aware proportional fair multicarrier scheduling algorithm for OFDM systems
Authors
KeywordsCross-Layer Design
Orthogonal Frequency-Division Multiplexing (Ofdm) Systems
Packet Scheduling
Proportional Fairness (Pf)
Quality Of Service (Qos)
Issue Date2009
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25
Citation
Ieee Transactions On Vehicular Technology, 2009, v. 58 n. 5, p. 2225-2235 How to Cite?
AbstractOrthogonal frequency-division multiplexing (OFDM) systems are the major cellular platforms for supporting ubiquitous high-speed mobile applications. However, a number of research challenges remain to be tackled. One of the most important challenges is the design of a judicious packet scheduler that will make efficient use of the spectrum bandwidth. Due to the multicarrier nature of the OFDM systems, the applicability and performance of traditional wireless packet-scheduling algorithms, which are usually designed for single-carrier systems, are largely unknown. In this paper, we propose a new quality-of-service (QoS)-aware proportional fairness (QPF) packet-scheduling policy with low complexity for the downlink of multiuser OFDM systems to allocate radio resources among users. Our proposed algorithm is based on a cross-layer design in that the scheduler is aware of both the channel (i.e., physical layer) and the queue state (i.e., data link layer) information to achieve proportional fairness while maximizing each user's packet-level QoS performance. The simulation results show that the proposed QPF algorithm is efficient in terms of average system throughput, packet-dropping probability, and packet delay, while maintaining adequate fairness among users with relatively low scheduling overhead. © 2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155520
ISSN
2015 Impact Factor: 2.243
2015 SCImago Journal Rankings: 1.203
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKong, Zen_US
dc.contributor.authorKwok, YKen_US
dc.contributor.authorWang, Jen_US
dc.date.accessioned2012-08-08T08:33:54Z-
dc.date.available2012-08-08T08:33:54Z-
dc.date.issued2009en_US
dc.identifier.citationIeee Transactions On Vehicular Technology, 2009, v. 58 n. 5, p. 2225-2235en_US
dc.identifier.issn0018-9545en_US
dc.identifier.urihttp://hdl.handle.net/10722/155520-
dc.description.abstractOrthogonal frequency-division multiplexing (OFDM) systems are the major cellular platforms for supporting ubiquitous high-speed mobile applications. However, a number of research challenges remain to be tackled. One of the most important challenges is the design of a judicious packet scheduler that will make efficient use of the spectrum bandwidth. Due to the multicarrier nature of the OFDM systems, the applicability and performance of traditional wireless packet-scheduling algorithms, which are usually designed for single-carrier systems, are largely unknown. In this paper, we propose a new quality-of-service (QoS)-aware proportional fairness (QPF) packet-scheduling policy with low complexity for the downlink of multiuser OFDM systems to allocate radio resources among users. Our proposed algorithm is based on a cross-layer design in that the scheduler is aware of both the channel (i.e., physical layer) and the queue state (i.e., data link layer) information to achieve proportional fairness while maximizing each user's packet-level QoS performance. The simulation results show that the proposed QPF algorithm is efficient in terms of average system throughput, packet-dropping probability, and packet delay, while maintaining adequate fairness among users with relatively low scheduling overhead. © 2009 IEEE.en_US
dc.languageengen_US
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25en_US
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_US
dc.rights©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectCross-Layer Designen_US
dc.subjectOrthogonal Frequency-Division Multiplexing (Ofdm) Systemsen_US
dc.subjectPacket Schedulingen_US
dc.subjectProportional Fairness (Pf)en_US
dc.subjectQuality Of Service (Qos)en_US
dc.titleA low-complexity QoS-aware proportional fair multicarrier scheduling algorithm for OFDM systemsen_US
dc.typeArticleen_US
dc.identifier.emailKwok, YK:ykwok@eee.hku.hken_US
dc.identifier.authorityKwok, YK=rp00128en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TVT.2008.2009874en_US
dc.identifier.scopuseid_2-s2.0-66449111610en_US
dc.identifier.hkuros161702-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66449111610&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume58en_US
dc.identifier.issue5en_US
dc.identifier.spage2225en_US
dc.identifier.epage2235en_US
dc.identifier.isiWOS:000267436200010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKong, Z=7006536683en_US
dc.identifier.scopusauthoridKwok, YK=7101857718en_US
dc.identifier.scopusauthoridWang, J=11439898400en_US

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