An effective signal strength-based wireless location estimation.pdf

An effective signal strength-based wireless location estimation.pdf

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页数:12页

时间:2019-03-14

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1、JournalofComputerandSystemSciences79(2013)1005–1016ContentslistsavailableatSciVerseScienceDirectJournalofComputerandSystemScienceswww.elsevier.com/locate/jcssAneffectivesignalstrength-basedwirelesslocationestimationsystemfortrackingindoormobileusersJosephKee-YinNga,∗,

2、Kam-YiuLamb,QuanJiaChenga,KevinChinYiuShumaaDepartmentofComputerScience,HongKongBaptistUniversity,HongKongbDepartmentofComputerScience,CityUniversityofHongKong,HongKongarticleinfoabstractArticlehistory:Localizationisanessentialfunctionforlocation-dependentservices.Alt

3、houghvariousReceived25June2012efficientlocalizationmethodshavebeenproposed,manyofthemhavenottestedwithReceivedinrevisedform13December2012practicalapplications.Differentlocation-dependentapplicationsmayhaveverydifferentAccepted25January2013performanceandoperationrequirem

4、entssuchastheaccuracyinlocalizationandfrequencyAvailableonline31January2013oflocationtracking.Inthispaper,basedonourpreviousworksonthedesignofefficientlocalizationmethods,westudytheimportantissuesinthedesignandimplementationKeywords:Localizationofalocationtrackingsystem

5、formonitoringpeopleinanindoorenvironmentwithinLocationestimationsystemalargebuildingsuchasinrehabitcentresandschools.InestimatingthecurrentlocationofLocationtrackingamobileuser,weadoptthereceivedsignalstrengthindicator(RSSI)approach.EnhancementsUbiquitous/pervasivecom

6、putingareproposedtoimprovetheaccuracyinlocalizationusingRSSI.Toensurethereliabilityofthelocationresultsandtheefficiencyinlocationtracking,itisimportanttominimizethetrafficoflocationdataonthenetwork,aswellasthechanceofoverloadingtheestimationsystem.Variousissuesinthedesign

7、ofthesystemarediscussedandtheperformanceresultsofthesystemareprovidedtoillustratetheefficiencyandthelimitationsoftheproposedmethods.©2013ElsevierInc.Allrightsreserved.1.IntroductionWithrapidadvancementsinmobilecomputingandcommunicationtechnologies,thedesignanddevelopmen

8、tofhigh-performancemobileandlocation-dependentapplicationshavebeenahotresearchtopicinrecentyears.Anessentialfunctionrequired

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