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Digital Information Service The market subject of digital information services •Information Producers: Information producers mainly refer to the original producers of information, such as articles, books and other works of individual authors, as well as the government departments, enterprises and… Continue Reading…

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Research on Market Operating Mechanism Nowadays, the digital and networked information environment has brought great convenience to people’s lives. It is the extensive use of information technology and the rapid development of Internet that has accelerated the global informatization. Thus,… Continue Reading…

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WirelessLAN by Emulator System Ascomparedwithcommunicationonastationaryhost,thequalityofcommunicationonamobilehostcanbeeasilydegradedbecauseoffading,waveinterferenceandsoon.Therefore,quantitativeevaluationofthequalityofaWebserviceonamobilehostisrequired.Especiallyitshouldbedoneinuserviewpointconsideringthatauserfinallydecidesthequality.Notethatthequalityofservice(QoS)inuser’sviewpointisoftenreferredtoasqualityofexperience(QoE).Thus,thispaperalsoadoptstheseterms.ToevaluateQoEofaWebservice,itisnecessaryforactualuserstoutilizetheWebserviceoveranactualnetworkandevaluateitwithsomesubjectivemethods.Inordertodothis,anexperimentermustprepareactualexperimentaldevices,suchasanaccesspoint(AP),somestations(STAs),andsoon.Moreover,iftheexperimenterassumesaWebclienttobeamobilehost,theusers(experimentalsubjects)mustusetheWebservicewhilemovingformanytimes.Thisimposesaheavyburdenontheusersandmakeslowreproducibilityoftheexperiment.Insteadofpreparingactualexperimentalenvironments,wecanconsiderusinganetworksimulatortoevaluateQoSofaWebserviceonamobilehost.However,sincethenetworksimulationisclosedwithinacomputer,usershardlyperformsubjectiveevaluationforsimulatedresults.Therefore,evalua-tionwithnetworksimulatorisnotalwayssuitablefortheQoEassessment SEO Company Kumbakonam hispaperstudiesamethodofevaluatingQoEofWebservicesonamobilehostoverawirelessLANbyusingtheintegratedsimulator/emulatorsystem.Therestofthispaperareasfollows.SectionIIintroducestheintegratedsimulator/emulatorsystem.WeshowourexperimentanditsresultsinSectionsIIIandIV,respectively.Finally,SectionVconcludesourstudy.II.INTEGRATEDSIMULATOR/EMULATORSYSTEMThedevelopedintegratedsimulator/emulatorsystemcanconnectmorethanonerealnetworkwitheachother.Bythesystem,anactualsenderhostcantransmitIPpacketstoanactualreceiveroneviavariouswithamobilehostoverawirelessLANvirtual(simulated)networks.Thesystemisdevelopedonanetworksimulatorns-3[3]andconsistsofsimulatorunitandemulatorone.Theformercanbuildsadesignatedexperimentalenvironmentonthens-3andhandleeventsundertheenvironmentinrealtime.Thelattertransmitsandreceivespacketsbetweenactualinterfacesandsimulatorunit.Byusingthissystem,itispossibletomeasureQoEunderanexperimentalenvironment.III.EXPERIMENTSA.EnvironmentFigure1showsourexperimentalenvironment.AsubjectusestheWebservicesdesignatedbytheexperimenteronthe Webclient.TheWebserverisconnectedtotheWebclientviatheintegratedsimulator/emulatorsystem,whichperformssimulationaccordingtothescenariosdescribedinthenextsubsection.TablesI,IIandIIIshowthespecificationsoftheWebclient,theintegratedsimulator/emulatorsystemandtheWebserver,respectively. ThispaperadoptsashoppingserviceandaWikiserviceastargetWebservices.TheshoppingserviceisaWebservicewhichincludesalotofHTMLfilesandimages,andWikiserviceconsistsonlyHTMLfiles.Astasks,thesubjectssearchsomeproductsdesignedbytheexperimentsfortheshoppingservice,andfindanswersofagivenquestionfortheWikiservice.Wesettasksthatsubjectschooseitemsspecifiedinshoppingservice,andlookforanswersofgivenquestioninWikiservice.Thesubjectsaremenaround20yearsold,andthenumberofthem ExperimentalScenariosAsexamplesofevaluation,theexperimenttreatsthefol-lowingsixexperimentalscenarios,whicharereferredtoasfromEnv1toEnv6forconvenience’ssake.Theyhavetheirowncombinationsofthenumberofaccesspoints(APs),thatofterminalsandthetypeofpropagationlossmodelinthewirelessLAN.Hereweassumethatapedestriancarriesalimitforeachtask,wedealwithonlytheeffectivenessandthesatisfactionasQoEparameters.Wegetthesatisfactionfromthequestionnairetakentosubjects.Inthequestionnaire,weaskwhethertherehasbeennocompletedissatisfactionwiththeWebservice,andweevaluatedtheeffectivenessfromtheachievementofthetask.Inaddition,wealsomeasuretheTCPthroughputandtheelapsedtimetoobtainaWebfileasQoSparameters https://arudhrainnovations.com/

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MobileHost over by Simulator Thedevelopedintegratedsimulator/emulatorsystemcanconnectmorethanonerealnetworkwitheachother.Bythesystem,anactualsenderhostcantransmitIPpacketstoanactualreceiveroneviavariouswithamobilehostoverawirelessLANvirtual(simulated)networks.Thesystemisdevelopedonanetworksimulatorns-3[3]andconsistsofsimulatorunitandemulatorone.Theformercanbuildsadesignatedexperimentalenvironmentonthens-3andhandleeventsundertheenvironmentinrealtime.Thelattertransmitsandreceivespacketsbetweenactualinterfacesandsimulatorunit.Byusingthissystem,itispossibletomeasureQoEunderanexperimentalenvironment Ontheotherhand,byusinganetworkemulator,itiseasytoconstructexperimentalenvironmentwhichcanmakesubjectsassess.Inthispaper,thenetworkemulatormeansadevicewhichcanemulateaWAN/LANline,e.g.Tcpdump[1].Indeed,subjectscanassessQoEforanactualWebserviceinsuchanexperimentalenvironmentwithanemulator,butitisdifficultforalmostnetworkemulatorstoemulatecomplexcharacteristicsofawirelessLAN,suchasradiointerference,fading,mobilityofhostsandsoon.Thatis,anexperimentwithanemulatorisnotexactlyadequateforQoEassessmentofaWebserviceonamobilehost.Theauthorshavedevelopedanintegratedevaluationsystemwiththesimulatorandemulator,andevaluatedWebusabilityofafixedSTAoverawirelessLANwiththesystem[2].Byusingthissystem,itispossibletomeasureQoEonamobilehostinawirelessLAN.Forthesakeofconvenience,werefertothesystemasaintegratedsimulator/emulatorsystem.ThispaperstudiesamethodofevaluatingQoEofWebservicesonamobilehostoverawirelessLANbyusingtheintegratedsimulator/emulatorsystem.Therestofthispaperareasfollows.SectionIIintroducestheintegratedsimulator/emulatorsystem.WeshowourexperimentanditsresultsinSectionsIIIandIV,respectively.Finally,SectionVconcludesourstudy. Arudhra Innovations Kumbakonam ThispapertreatsWebusabilitydefinedinISO9241-11[6]asQoEparameters.Inthisrecommendation,webusabilityisdefinedthedegreeofsatisfaction,effectiveness,andefficiency.Thesatisfactionisfreedomfromdiscomfort,andpositiveattitudestowardstheuseoftheproduct.Theeffectivenessisaccuracyandcompletenesswithwhichusersachievespecifiedgoals.Theefficiencyisresourcesexpendedinrelationtotheaccuracyandcompletenesswithwhichusersachievegoals.Notethat,tocalculatetheefficiency,theeffectivenessisnormalizedbywastedresources.Ingeneral,thetimeresourceisconsideredastheresources.However,sincewehaveatime Finally,theeffectivenessfortheshoppingserviceandtheWikiservicearerepresentedinFigs.13and14,respectively.Consideringtheeffectiveness,wecannotfindanysignificantdifferenceinboththeshoppingserviceandtheWikiservice.Fromtheexperimentalresults,wefindthattheelapsedtimetoobtainaWebfileisincreasedbymovinginashoppingservice,andsatisfactionisdegradedbythis.Ontheotherhand,thedeteriorationoftheTCPthroughputandelapsedtimetoobtainaWebfilecausedbythemovementoftheuserdoesnotaffectsatisfactionintheWikiservice.SinceresultsintheevaluationofQoEandQoSaredifferent,notonlyresultofsimulator,butevaluationofQoEisrequired. ThispapertreatsWebusabilitydefinedinISO9241-11[6]asQoEparameters.Inthisrecommendation,webusabilityisdefinedthedegreeofsatisfaction,effectiveness,andefficiency.Thesatisfactionisfreedomfromdiscomfort,andpositiveattitudestowardstheuseoftheproduct.Theeffectivenessisaccuracyandcompletenesswithwhichusersachievespecifiedgoals.Theefficiencyisresourcesexpendedinrelationtotheaccuracyandcompletenesswithwhichusersachievegoals.Notethat,tocalculatetheefficiency,theeffectivenessisnormalizedbywastedresources.Ingeneral,thetimeresourceisconsideredastheresources.However,sincewehaveatimwefindnosignificantdifferencebetweentheTCPthroughputofanytwoofthefiveexperimentalenvironmentsfortheshoppingserviceatsignificancelevelof5%.FortheWikiservice,thereisasignificantdifferencebetweenthevalueunderEnv4andthatunderanyotherenvironment.Fromtheseresults,wefindthattheTCPthroughputreducesundertheenvironmentthatmanySTAsconnecttooneAPfortheWikiservice.ThereasonwhytheTCPthroughputwasdegradedunderEnv4isthattheJakespropagationlossmodelmodelspropagationlosswithobstaclesandoccursmanypacketlosses. https://arudhrainnovations.com/

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Evaluation of QoE of WebServices ThispaperstudiesamethodofassessingQoEofWebservicesonamobilehostoverawirelessLAN.ToperformQoEassessment,theauthorsutilizetheirintegratedsimulator/emulatorsystem.ThisexperimentassumessixscenarioswherepedestriansassessWebserviceswhilemoving.TheauthorstreatashoppingserviceandaWikiserviceastargetWebservicesandconsiderWebusabilityasQoE.TheexperimentalresultsdonotconfirmthatdegradationofQoEdependsonthatofQoS.Consequently,itisinevitabletoassessactualQoEandtheintegratedsimulator/emulatorsystemiseffectiveinperformingsuchassessment https://arudhrainnovations.com/ Currently,becauseofthepenetrationofwirelessdevices,opportunitytouseaWebserviceoverawirelessLANhasbeenincreasing.Consequently,wecanoftenutilizesomeWebserviceswhilemovingonfoot,bycar,orbytrain.ThismeansthatweshouldevaluateaWebservicetreatingaWebclientasamobilehost.Ascomparedwithcommunicationonastationaryhost,thequalityofcommunicationonamobilehostcanbeeasilydegradedbecauseoffading,waveinterferenceandsoon.Therefore,quantitativeevaluationofthequalityofaWebserviceonamobilehostisrequired.Especiallyitshouldbedoneinuserviewpointconsideringthatauserfinallydecidesthequality.Notethatthequalityofservice(QoS)inuser’sviewpointisoftenreferredtoasqualityofexperience(QoE).Thus,thispaperalsoadoptstheseterms.ToevaluateQoEofaWebservice,itisnecessaryforactualuserstoutilizetheWebserviceoveranactualnetworkandevaluateitwithsomesubjectivemethods.Inordertodothis,anexperimentermustprepareactualexperimentaldevices,suchasanaccesspoint(AP),somestations(STAs),andsoon.Moreover,iftheexperimenterassumesaWebclienttobeamobilehost,theusers(experimentalsubjects)mustusetheWebservicewhilemovingformanytimes.Thisimposesaheavyburdenontheusersandmakeslowreproducibilityoftheexperiment. https://arudhrainnovations.com/ Insteadofpreparingactualexperimentalenvironments,wecanconsiderusinganetworksimulatortoevaluateQoSofaWebserviceonamobilehost.However,sincethenetworksimulationisclosedwithinacomputer,usershardlyperformsubjectiveevaluationforsimulatedresults.Therefore,evalua-tionwithnetworksimulatorisnotalwayssuitablefortheQoEassessmentOntheotherhand,byusinganetworkemulator,itiseasytoconstructexperimentalenvironmentwhichcanmakesubjectsassess.Inthispaper,thenetworkemulatormeansadevicewhichcanemulateaWAN/LANline,e.g.Tcpdump[1].Indeed,subjectscanassessQoEforanactualWebserviceinsuchanexperimentalenvironmentwithanemulator,butitisdifficultforalmostnetworkemulatorstoemulatecomplexcharacteristicsofawirelessLAN,suchasradiointerference,fading,mobilityofhostsandsoon.Thatis,anexperimentwithanemulatorisnotexactlyadequateforQoEassessmentofaWebserviceonamobilehost. Webclient.TheWebserverisconnectedtotheWebclientviatheintegratedsimulator/emulatorsystem,whichperformssimulationaccordingtothescenariosdescribedinthenextsubsection.TablesI,IIandIIIshowthespecificationsoftheWebclient,theintegratedsimulator/emulatorsystemandtheWebserver,respectively.ThispaperadoptsashoppingserviceandaWikiserviceastargetWebservices.TheshoppingserviceisaWebservicewhichincludesalotofHTMLfilesandimages,andWikiserviceconsistsonlyHTMLfiles.Astasks,thesubjectssearchsomeproductsdesignedbytheexperimentsfortheshoppingservice,andfindanswersofagivenquestionfortheWikiservice.Wesettasksthatsubjectschooseitemsspecifiedinshoppingservice,andlookforanswersofgivenquestioninWikiservice.Thesubjectsaremenaround20yearsold,andthenumberofthemis12 Inthisstudy,weperformedQoEassessmentundertheenvironmentsassumingthepedestrianusingtheintegratedevaluationsystemusingthesimulatorandtheemulator,andevaluateWebusability.Fromthisresult,wefoundthatWebusabilityisnotdegradedexpectforsomeenvironmentsinthiscase.ThisindicatesthatQoEevaluationwiththesimu-lator/emulatorsystemisadequate.Asourfuturework,itwasintendedforscenariosthatareintendedtobepedestrianthistime,butweconsiderascenariothatassumesmovementsuchascarortrain,andexperimentsinotherWebservices. SEO Company Arudhra Innovations

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Web Sites on Hosting Web sites have been great diversity because of theirpurposes and structures today and many web sites are workingon hosting services. A hosting service is one of the networkservices for outsourcing construction and maintenance of theservers. Thus,… Continue Reading…

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Hosting Services with Self-Learning Honeypots We suppose hosting service providers would like to monitorthe web sites under his service. For monitoring the access andthe behaviors for their web servers, the providers collect andanalyze security logs in general. By analyzing those… Continue Reading…

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Defending Web Sites Web sites have been great diversity because of theirpurposes and structures today and many web sites are workingon hosting services. A hosting service is one of the networkservices for outsourcing construction and maintenance of theservers. Thus, the… Continue Reading…

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Hosted Web Service and Its Performance Analysis Queue Model for Mobile Device Hosted Web Service To analysis the performance of the integrated web service framework for mobile device hosted web service, we build the following queue mode (See Fig.2) In… Continue Reading…

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An Integrated Web Service Framework for Mobile Device With the development of computer manufacture technology, communication and network, computer technology has been in the era of Pervasive Computing [1-7]. We can see that one of the unique characteristic of the… Continue Reading…