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Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks
Abstract <p>The WiMAX standard specifies a me … <p>The WiMAX standard specifies a metropolitan area broadband wireless access air interface. In order to support QoS for multimedia applications, various bandwidth request and scheduling mechanisms are suggested in WiMAX, in which a subscriber station can send request messages to a base station, and the base station can grant or reject the request according to the available radio resources. This article first compares two fundamental bandwidth request mechanisms specified in the standard, random access vs. polling under the point-to-multipoint mode, a mandatory transmission mode. Our results demonstrate that random access outperforms polling when the request rate is low. However, its performance degrades significantly when the channel is congested. Adaptive switching between random access and polling according to load can improve system performance. We also investigate the impact of channel noise on the random access request mechanism. © 2007 IEEE.</p> request mechanism. © 2007 IEEE.</p>
Author Qiang Ni + , Alexey Vinel + , Yang Xiao + , Andrey Turlikov + , Jiang Tao +
DOI http://dx.doi.org/10.1109/MCOM.2007.358860  +
Diva http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:585220
EndPage 138  +
Issue 5  +
Journal IEEE Communications Magazine  +
PublicationType Journal Paper  +
Publisher IEEE Press  +
StartPage 132  +
Title Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks  +
Volume 45  +
Year 2007  +
Has queryThis property is a special property in this wiki. Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks + , Publications:Wireless broadband access : WiMax and beyond - Investigation of bandwidth request mechanisms under point-to-multipoint mode of WiMAX networks +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 26 June 2014 03:40:35  +
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