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移动IP的切换特征分析.doc

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1000-9825/2005/16(07)1305?2005JournalofSoftware????Vol.16,No.7??IP????????????1+,???1,??2,???11(?????????????????,??100080)2(???????,??)CharacterizationofHandoffinMobileIPZHAOQing-Lin1+,LIZhong-Cheng1,FENGLi2,YANGJian-Hua11(InformationNetworkLaboratory,InstituteofComputingTechnology,TheChineseAcademyofSciences,Beijing100080,China)2(DepartmentofMathematics,UniversityofHongKong,HongKong,China)+Correspondingauthor:Phn:+86-10-62565533,Fax:+86-10-62567724,E-mail:zql@ict.ac.cnReceived2004-02-10;Accepted2004-09-08ZhaoQL,LiZC,FengL,YangJH.CharacterizationofhandoffinMobileIP.JournalofSoftware,2005,16(7):1305-1313.DOI:10.1360/jos161305Abstract:MobileIPisasimpleandscalableglobalmobilitysolution.ThispapernumericallyanalyzesthecharacterizationofhandoffforMobileIP:theprobabilitydistributionaboutpacketlossandpacketdisorder.Byusingtheresult,theradiusofoverlapregionisoptimized.Theillustrationsshowthatthemodelpreciselyreflectsthehandoffbehavior.Theprobabilityisveryhelpfultoevaluatethehandoffperformance.Keywords:mobileIP;celloverlap;packetloss;packetdisorder???:??IP??????????????????.?????????IP?????????????????????.??????,?????????.????,??????????IP?????.????????IP?????????.???:??IP;????;????;??????????:TP393??????:A??SupportedbytheNationalNaturalScienceFoundationofChinaunderGrantNo.90104006(????????);theNationalHigh-TechResearchandDevelopmentPlanofChinaunderGrantNos.2001AA112052,2003BA904B06(???????????(863))ZHAOQing-Linwasbornin1974.HeisaPh.D.candidateattheInstituteofComputingTechnology,theChineseAcademyofSciences.Hiscurrentresearchinterestsincludewirelesscommunicationandmobilenetworksetc.LIZhong-Chengwasbornin1962.HeisaprofessoranddoctoralsupervisorattheInstituteofComputingTechnology,theChineseAcademyofSciencesandaCCFseniormember.Hisresearchesareasarecomputernetworksetc.FENGLiwasbornin1976.SheisaPh.D.candidateattheDepartmentofMathematics,theUniversityofHongKong.Hercurrentresearchinterestsincludegraphtheoryandapproximationalgorithmdesignetc.YANGJian-Huawasbornin1978.SheisaPh.D.cand