Practical passive fingerprinting method실용적인 패시브 핑거프린팅 방법

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dc.contributor.advisorHan, Dongsoo-
dc.contributor.advisor한동수-
dc.contributor.authorKo, Daegweon-
dc.date.accessioned2022-04-27T19:32:10Z-
dc.date.available2022-04-27T19:32:10Z-
dc.date.issued2021-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=948439&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/296154-
dc.description학위논문(석사) - 한국과학기술원 : 전산학부, 2021.2,[iii, 36 p. :]-
dc.description.abstractPassive fingerprinting is a technique that collects the signal from a smartphone emitted from one location with a signal collection device called a Wi-Fi monitor, constructs a fingerprint with the received signal strengths of the collected signal, and uses it as a feature representing the user's location. Since the smartphone does not collect signals actively, the smartphone's sensor data cannot be used, so only the received signal strength emitted from the smartphone can be used for indoor positioning. However, since the signal strength is susceptible to fluctuations, inferring the user's walking path with only the received signal strength makes it challenging to construct a radiomap, an essential element for positioning. Besides, since the radiomap constructed by the passive fingerprinting method may cause a missing value problem and a shadow area problem due to a signal collection device, the radiomap's quality can be poor. In this paper, we proposed a method of constructing a passive fingerprinting radiomap using an adjacency matrix representing the WiFi monitor's deployment and an active fingerprinting radiomap. The proposed method reduces radiomap construction cost by filtering outlier monitors in the WiFi monitor sequence, indicating the user's path. Moreover, it solves the missing value problem and shadow area problem by combining the active fingerprinting radiomap with the passive fingerprinting method's radiomap.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjectPassive fingerprinting▼aIndoor positioning▼aWiFi fingerprinting▼aWiFi monitor▼aLocation-based services-
dc.subject패시브 핑거프린팅▼a실내 측위▼a와이파이 핑거프린팅▼a와이파이 모니터▼a위치 기반 서비스-
dc.titlePractical passive fingerprinting method-
dc.title.alternative실용적인 패시브 핑거프린팅 방법-
dc.typeThesis(Master)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :전산학부,-
dc.contributor.alternativeauthor고대권-
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