移动通信与数字通信new

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1、FastHandoverAlgorithmforHierarchicalMobileIPv6macro-mobilityManagementIndraVivaldi,MohdHadiHahaebi,BcirhanuddinMohdAli,V.PrakashDepartmentofCommunicationandNetworkingSystemFacultyofEngineering,UniversitiPutraMalaysiaSerdang43400Selangor~MalaysiaTel:03-89466445;Fax:03-86567127Email

2、:vivaldiv@softhome.net;{hadi,borhan,prakash}@eng.upm.edu.myAbstract-Mobilelh.6(MIPv6)hassomelimitationsduetolongwiredaccesstechnologiestoaccessthecommoninformationdelaysandsignalingloadduringhandoveroperation.infrastructure[I].HierarchicalMobileIPv6(HMIPv6)istheextensionofMIPv6Mob

3、ileIPischosentomakeslightalternation[2].ThethatisdesignedtoreducethesignalingloadandtoimproveadvantageofmobileIPisitsphysicallayerindependence,handoverspeedofMIPv6bysplittingthemobilitymanagementwhichmeansthatanycommunicationmedia,includingwiredintomacroandmicromobilitymanagements

4、chemes.HoweverandwirelessnetworkwillsupportmobileIP.MobileIPwillHhfIPv6onlyimprovesmicromobilityproblemwherethesignifcantdelaystilloccursinthemacromobilitymanagementoffermajorbenefits,includingapplicationtransparencyandbecausethehandoveralgorithmissimilarwiththeMIPv6thepossibility

5、ofseamlessroaming.Applicationtransparencyenvironment,isalmostrequiredforallreasonablesolutions,becauseitisThispaperproposesanewfasthandoveralgorithmthatunacceptabletoforcemobileuserstobuyallnewmobileovercomesthelimitationsinMobileMIPv6anditsextensionawareapplications,andmobileIPis

6、theonlycurrentmeansHMIPv6.Ourdesignobjectiveistore-establishtheforofferingseamless,mobilitytomobilecomputersinthecommunicationtrafficflowquicklyandtominimizetheserviceInternet.However,MobileIPneedstobeenhancedtomeetdisruptiondelaythatoccnrsduringhandoverprocessinamacrotheneedsoffu

7、turefourthgenerationcellularnetworks.mobilityenvironment.ThishandoveralgorithmisbasedontheIPv6isthenextgenerationoftheInternetprotocolthattriestomodificationoftheHMIPv6protocolusingthemulticasttechniqueconcept.ThisalgorithmwillenablethemobilenodetoreplaceIPv4thatsupportmobility[3]

8、.MIPv6mechanismreceivepacketfaste