移动IP的应用与移动互联网(马严教授,北京邮电大学).ppt

1、ApplicationofMobileIPandMobileInternet,CERNET2004InformationNetworkCenterBeijingUniversityofPostsandTelecommunicationsMAYanDec.2004,CERNET2004,2,Agenda,SomeofthekeytechnologiesfortheNextGenerationMobileInternetHighperformance,hierarchicalnetworkVariousnewwirelesstechnologyL2/L3RoamingtechnologyQoSis

2、sueSecurityissueMobilecomputationforcommercialapplicationsMigrationfromIPv4toIPv6ResearchactivitiesinBUPT,CERNET2004,3,ExpectationtoMobileComputing,ThosefeaturesincludingMobility:roamingwithinandamongheterogeneousnetworksAtease:largeservicecoverage,sufficientpowersupplySecurity:Authentic,secureandpr

3、ivacyensuredQualityofservice:Stableservice,differentiatedservicesHighperformance:Terminal,NetworkandBackendInter-operability:standardizationAbundance:colorfulapplicationsavailable,CERNET2004,4,1981:OsborneComputer1,第一台便携式计算机5英寸显示器，52字符专有操作系统软件BASIC,WordStar,SuperCalc等售价：$1795,CERNET2004,5,Firstcolor

4、screenportablecomputer,1983:CommodoreSX-64,CERNET2004,6,1983:RadioShackModel100,第一台得到实用的笔记本计算机内置显示器和常规键盘使用AA电池显示器为840LCD内置Basic语言24KB内存时售价为$1000,CERNET2004,7,1985:东芝TOSHIBA公司的T1100,Intel8086CPU主频:1MHz内存：512KRAM9英寸的单色显示屏无硬盘内置MS-DOS,CERNET2004,8,Briefhistoryofmobileterminal,1981:OsborneComputer11983:C

5、ommodoreSX-641983:RadioShackModel1001985:TOSHIBA,T1100Notebookcomputer,PDA,inthe21s,CERNET2004,9,Layered,Highperformanceinfrastructure,Backbone,Regionalbackbone,Accessnetwork,Wiredandwirelessterminals,CERNET2004,10,Bandwidthallocation,Backbone/Tbps,HomeandOffice10100Mbps,Campus/Gbps,Building/110Gbps

6、,Terminal/11100Mbps,CERNET2004,11,VariousenhancedwirelessLANTechs,IEEE802.11serious11b/11a/11gIEEE802.15PAN10MBluetoothIEEE802.16LargecoverageIEEE802.20atHighmovingspeed,CERNET2004,12,Variousterminalsthatsupportingmobilecomputing,performance,MobilephoneVoiceanddatacomText-basedapplication,PDAsimpleg

7、raphicHandwritingrecognitionSimpleversionofbrowser,Palm-sizedsmallkey-boardsimplifiedapplication,PortablecomputerFullfunctionsStandardapplication,CERNET2004,13,Sampledevices,CERNET2004,14,Variouspalm-sizeterminals,PDACELLSTARspocketsurfer,Palmsource的Nagel,SONY的专用电子书阅读器,BSQUARECorporation的Maui.,图片引自h

8、ttp:/www.hi-，在此致谢。,CERNET2004,15,Futuredisplaydevice,EInkInc.inMassachusettes,USAAnewtypeofflectionaldisplaydeviceLight-weighted,lesspowerrequired,easytocarry,CERNET2004,16,Performanceextrapolation,Dr.JackDongarraUniversityofTennessee,CERNET2004,17,中国教育科研网格计划ChinaGrid（第一期）,教育部于2003年启动了中国教育网格项目现有学术网格

9、图像处理网格生物信息学网格大学课程在线网格计算流体力学网格海量信息处理网格,CERNET2004,18,Migrationfromfixedtomobile,Application,Transport,Network,DataLink,Physical,Medium,DataLink,Physical,Application,Transport,Network,DataLink,Physical,DataLink,Physical,Radio,CERNET2004,19,TacticalInternet,CERNET2004,20,ResearchareasinmobileInternet,W

10、irelesscommunicationCellularsystem,WLAN,UWB/blue-tooth,IEEE802seriousMobileIPMobileIP,Positionmanagement,AdHocnetworkingTransportlayerPerformanceofTCPinthewirelessenvironmentMiddlewareandapplicationsystemsDatawarehouseDistributeddatabaseSecuritytechnologyQoSandSLAensurenceforthemobilecomputing,CERNET2004,21,Wi-FiAddisonWesleyIPfor3G-NetworkingTechnologiesforMobileCommunicationsbyJohnWileyandSonsInc.LtdRFC3775M