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Article: Fading-aware packet scheduling algorithm in OFDM-MIMO systems

TitleFading-aware packet scheduling algorithm in OFDM-MIMO systems
Authors
Issue Date2007
PublisherHindawi Publishing Corp. The Journal's web site is located at http://jwcn.eurasipjournals.com/
Citation
Eurasip Journal On Wireless Communications And Networking, 2007, v. 2007, article no. 095917 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 level. In the frequency domain, several consecutive subchannels are grouped as a frequency subband. Each subband in a frame can be used to transmit a packet, and can be reused by several users in a multiple-input and multiple-output (MIMO) systems. In this paper, we consider the adaptive packet scheduling algorithms design for OFDM/SDMA system.Based on the BER requirements, all traffics are divided into classes.Based on such classification, a dynamic packet scheduler is proposed,which greatly improves system capacity, and can guarantee QoS requirements.Adaptive modulation is also applied in the scheduler. Then, the complexity analysis of these algorithms is given. 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.
Persistent Identifierhttp://hdl.handle.net/10722/155379
ISSN
2015 SCImago Journal Rankings: 0.326
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDiao, Zen_US
dc.contributor.authorLi, VOKen_US
dc.date.accessioned2012-08-08T08:33:09Z-
dc.date.available2012-08-08T08:33:09Z-
dc.date.issued2007en_US
dc.identifier.citationEurasip Journal On Wireless Communications And Networking, 2007, v. 2007, article no. 095917en_US
dc.identifier.issn1687-1472en_US
dc.identifier.urihttp://hdl.handle.net/10722/155379-
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 level. In the frequency domain, several consecutive subchannels are grouped as a frequency subband. Each subband in a frame can be used to transmit a packet, and can be reused by several users in a multiple-input and multiple-output (MIMO) systems. In this paper, we consider the adaptive packet scheduling algorithms design for OFDM/SDMA system.Based on the BER requirements, all traffics are divided into classes.Based on such classification, a dynamic packet scheduler is proposed,which greatly improves system capacity, and can guarantee QoS requirements.Adaptive modulation is also applied in the scheduler. Then, the complexity analysis of these algorithms is given. 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.en_US
dc.languageengen_US
dc.publisherHindawi Publishing Corp. The Journal's web site is located at http://jwcn.eurasipjournals.com/en_US
dc.relation.ispartofEurasip Journal on Wireless Communications and Networkingen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleFading-aware packet scheduling algorithm in OFDM-MIMO systemsen_US
dc.typeArticleen_US
dc.identifier.emailLi, VOK:vli@eee.hku.hken_US
dc.identifier.authorityLi, VOK=rp00150en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1155/2007/95917en_US
dc.identifier.scopuseid_2-s2.0-34250901831en_US
dc.identifier.hkuros152504-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34250901831&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2007en_US
dc.identifier.isiWOS:000247599100001-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridDiao, Z=8415199800en_US
dc.identifier.scopusauthoridLi, VOK=7202621685en_US

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