资源描述：
《Performance Analysis of the IEEE 802.16 Wireless Metropolitan Area》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、PerformanceAnalysisoftheIEEE802.16WirelessMetropolitanAreaNetworkDong-HoonCho,Jung-HoonSong,Min-SuKim,andKi-JunHan*(*Correspondentauthor)DepartmentofComputerEngineering,KyungpookNationalUniversity,Korea{firecar,pimpo,kiunsen}@netopia.knu.ac.kr,kjhan@bh.knu.ac.krAbstractandxDSL.Duetotheupcomingairin
2、terfacetechnologies,whichpromisetodeliverhighInthispaper,weproposeanewQoSarchitecturetransmissiondatarates,BWAsystemsbecomeanfortheIEEE802.16aMACprotocolandpresentaattractivealternative.Theirmainadvantageistheirfastbandwidthallocationandadmissioncontrolpolicyfordeployment,whichcanresultincostsaving
3、s.Forthearchitecture.OurarchitectureprovidesQoSexample,suchinstallationscanbebeneficialin(1)supporttoreal-timetrafficwithhighprioritywhileverycrowdedgeographicalareassuchascitiesorinmaintainingthroughputperformancetoanacceptable(2)ruralareaswherethereisnowiredinfrastructure.levelforlowprioritytraff
4、ic.AnalyticalandsimulationWithoutnewcablewiringforthewholecity,theresultsassureadvantagesofourarchitecture.antennaofthebasestationandsubscribercustomersareeasilysetupattherooftopoftheirbuildingsto1.Introductionformthewirelessnetwork.BWAsystemsareexpectedtosupportqualityofservice(QoS)forrealtimeappl
5、icationssuchasvideoconferencing,videoTheemerging802.16eand802.20standardswillstreaming,andvoiceoverIP.Suchapplicationsarebothspecifynewmobileairinterfacesforwirelessdelayanddelayvariationsensitive.Inotherwords,thebroadband.Onthesurfacethetwostandardsseemveryqualityoftheapplicationisseverelydegraded
6、becausesimilar,buttherearesomeimportantdifferencesthepacketssufferlargedelaysanddelayvariation.[1]betweenthem.Forone,802.16ewilladdmobilityinIEEE802.16mediaaccesscontrol,whichisbasedthe2to6GHzlicensedbands,while802.20aimsforontheconceptsofconnectionsandserviceflows,operationinlicensedbandsbelow3.5G
7、Hz.MorespecifiesQoSsignalingmechanisms(perconnectionimportantly,the802.16especificationwillbebasedonorperstation)suchasbandwidthrequestsandanexistingstandard(802.16a),while802.20isstartingbandwidthallocatio
