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ID:34459803
大小:248.00 KB
页数:6页
时间:2019-03-06
《internetworking wwans and wlans in next generation wireless data networksnew》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、INTERNETWORKINGWWANSANDWLANSINNEXTGENERATIONWIRELESSDATANETWORKSHung-YunHsiehandRaghupathySivakumarGNANResearchGroupSchoolofElectricalandComputerEngineeringGeorgiaInstituteofTechnology{hyhsieh,siva}@ece.gatech.eduAbstractbasedcoverage,suchadeploymentisinfeasiblebecauseo
2、fcostandinterferenceconstraints.InthispaperwestudytheinternetworkingofWWANsandAnobvioussolutiontoovercomethelowcapacityproblemWLANsfornextgenerationwirelesspacketdatanetworksofwide-areawirelessnetworksandthelowcoveragemotivatedbythecapacityandcoveragetradeoffsoftheprobl
3、emoflocal-areawirelessnetworksistoperformatwonetworks.Wecomparedifferenttypesofnetworkverticalhand-off[1]fromtheWLANtotheWWANwhenarchitecturesandproposeaone-hopWWANandmulti-ausermovesoutoftheWLANcoveragearea.SuchahopWLANarchitecturetoprovideuserswithguaranteedsolutionha
4、salsobeenproposedinseveralrelatedworksserviceandsmoothhand-offs.Wethenshowthrough[2][3][4].Specifically,theBRANHiperLAN/2attemptstosimulationsthattheproposedarchitecturecoupledwithaintegrateWLANaccesswithinthesameinfrastructurethatfine-grainedpacketschedulingalgorithmac
5、hieveshigherprovides3Gwide-areaaccess.Theadvantageofperformance.Finallyweidentifyseveralopenresearchperformingtheverticalhand-offisself-evident:Whentheissuesassociatedwiththeproposedarchitecture.useriswithintherangeofaWLANaccess-point,ahighdataratepertainingtothatoftheW
6、LANisprovided.As1IntroductiontheusermovesawayfromthecoverageareaoftheWLANWithanincreasingnumberofInternetusersbecomingaccess-point,networkconnectivityisstillseamlesslymobile,wirelessdatanetworkingtechnologiesthatmaintained,albeitatasignificantlylowerdatarate.facilitatet
7、etherlesscommunicationhavecomeunderAlthoughtheafore-mentionedapproachservesasasimpleintensescrutinyandresearch.2.5GwirelesspacketdatasolutiontobridgethedesirablepropertiesofthetwotypessystemssuchasGPRS(GeneralPacketRadioService)ofnetworkenvironments,thekeydrawbacksofusi
8、ngsuchprovidedataratesthatareafewordersofmagnitudelowerasimpleapproacharethecapacityvs.coveragetradeoffsthanth
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