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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/