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Conference Paper: An adaptive packet scheduling algorithm in OFDM systems with smart antennas

TitleAn adaptive packet scheduling algorithm in OFDM systems with smart antennas
Authors
KeywordsCommunications
Radio
Issue Date2005
PublisherIEEE.
Citation
Ieee International Symposium On Personal, Indoor And Mobile Radio Communications, Pimrc, 2005, v. 4, p. 2151-2155 How to Cite?
AbstractTo maximize system throughput and guarantee the quality of service (QoS) of multimedia traffic in Orthogonal Frequency Division Multiplexing (OFDM) systems with smart antennas, a new packet scheduler is introduced to consider QoS requirements, packet location in the frame, and modulation scheme. In OFDM, several consecutive subcarriers are grouped as a frequency subband. Each subband in a frame can be reused by several users with smart antennas. In this paper, based on the Best-Fit algorithm proposed for TDMA and the physical features of OFDM, a new packet scheduler is proposed to allocate different BER-classified traffics into the frame. Adaptive modulation is also applied in the scheduler. When compared with existing schedulers, our scheduler achieves higher system capacity with much reduced complexity. The use of adaptive modulation further enhances the system capacity. Simulation results demonstrate that as the traffic load increases, the new scheduler has much better performance in system throughput, average delay, and packet loss rate. © 2005 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/45865
References

 

DC FieldValueLanguage
dc.contributor.authorDiao, Zen_HK
dc.contributor.authorShen, Den_HK
dc.contributor.authorLi, VOKen_HK
dc.date.accessioned2007-10-30T06:37:15Z-
dc.date.available2007-10-30T06:37:15Z-
dc.date.issued2005en_HK
dc.identifier.citationIeee International Symposium On Personal, Indoor And Mobile Radio Communications, Pimrc, 2005, v. 4, p. 2151-2155en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45865-
dc.description.abstractTo maximize system throughput and guarantee the quality of service (QoS) of multimedia traffic in Orthogonal Frequency Division Multiplexing (OFDM) systems with smart antennas, a new packet scheduler is introduced to consider QoS requirements, packet location in the frame, and modulation scheme. In OFDM, several consecutive subcarriers are grouped as a frequency subband. Each subband in a frame can be reused by several users with smart antennas. In this paper, based on the Best-Fit algorithm proposed for TDMA and the physical features of OFDM, a new packet scheduler is proposed to allocate different BER-classified traffics into the frame. Adaptive modulation is also applied in the scheduler. When compared with existing schedulers, our scheduler achieves higher system capacity with much reduced complexity. The use of adaptive modulation further enhances the system capacity. Simulation results demonstrate that as the traffic load increases, the new scheduler has much better performance in system throughput, average delay, and packet loss rate. © 2005 IEEE.en_HK
dc.format.extent2192156 bytes-
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dc.format.extent5489 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
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dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRCen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2005 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.en_HK
dc.subjectCommunicationsen_HK
dc.subjectRadioen_HK
dc.titleAn adaptive packet scheduling algorithm in OFDM systems with smart antennasen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLi, VOK:vli@eee.hku.hken_HK
dc.identifier.authorityLi, VOK=rp00150en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/PIMRC.2005.1651826en_HK
dc.identifier.scopuseid_2-s2.0-34047119122en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34047119122&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume4en_HK
dc.identifier.spage2151en_HK
dc.identifier.epage2155en_HK
dc.identifier.scopusauthoridDiao, Z=8415199800en_HK
dc.identifier.scopusauthoridShen, D=7401738166en_HK
dc.identifier.scopusauthoridLi, VOK=7202621685en_HK

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