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International Conference Publications

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Digital Marketing Company Kumbakonam Digital Marketing Research Tools Research is essential to the success of any marketing campaign. Without proper planning and research, you are making your tasks when starting a campaign a lot harder. Always do your research and… Continue Reading…

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seo company in kumbakonam Speed Up Link Prospecting With Lists Say we worked in the gardening industry and wanted to find garden blogs to do some outreach. Our first instinct may be to search for “garden blogs” or something similar… Continue Reading…

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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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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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