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1、NonamemanuscriptNo.(willbeinsertedbytheeditor)TowardsanElasticApplicationModelforAugmentingtheComputingCapabilitiesofMobileDeviceswithCloudComputingXinwenZhang·AnugeethaKunjithapatham·SangohJeong·SimonGibbsReceived:date/Accepted:dateAbstractWeproposeanewelasticapplicati
2、onmodelthat1Introductionenablesseamlessandtransparentuseofcloudresourcestoaugmentthecapabilityofresource-constrainedmobilede-Applicationsonsmartphonestraditionallyareconstrainedvices.ThesalientfeaturesofthismodelincludethepartitionbylimitedresourcessuchaslowCPUfrequency
3、,smallofasingleapplicationintomultiplecomponentscalledwe-memory,andabattery-poweredcomputingenvironment.blets,andadynamicadaptationofwebletexecutionconfig-Forexample,theiPhone3Gisequippedwith412MHzCPU,uration.Whileawebletcanbeplatformindependent(e.g.,512MBRAM,andabattery
4、allowingabout5hoursoftalk-Javaor.NetbytecodeorPythonscript)orplatformdepen-ingtime.ThenewSamsungGalaxyAndroidphonehasdent(nativecode),itsexecutionlocationistransparent–it528MHzCPU,128MBRAM,andbatteryofferingabout6.5canberunonamobiledeviceormigratedtothecloud,i.e.,hourso
5、ftalktime.Bothdeviceshaveupto7.2Mbps3GdatarunononeormorenodesofferedbyanIaaSprovider.Thus,networkconnection.Comparedtotoday'sPCandserveranelasticapplicationcanaugmentthecapabilitiesofamo-platforms,thesedevicesstillcannotruncompute-intensivebiledeviceincludingcomputation
6、power,storage,andnet-applicationssuchascomplexmediaprocessing,search,andworkbandwidth,withthelightofdynamicexecutioncon-large-scaledatamanagementandmining.figurationaccordingtodevice'sstatusincludingCPUload,Cloudcomputingdeliversnewcomputingmodelsformemory,batterylevel,n
7、etworkconnectionquality,anduserbothserviceprovidersandindividualconsumersinclud-preferences.Thispaperpresentsthemotivationbehindde-inginfrastructure-as-a-service(IaaS),platform-as-a-servicevelopingelasticapplicationsandtheirarchitectureincluding(PaaS),andsoftware-as-a-s
8、ervice(SaaS),whichenabletypicalelasticitypatternsandcostmodelsthatareappliedtonovelITbusinessmodelssuchasresou
