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양현용(Hyunyong Yang),김동성(Dongsung Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
Wire1ess LAN(WLAN) has been constructed in many public facilities to meet the need of wireless internet service. Localization using WLAN at an indoor environment starts to receive attention from many researchers. This paper proposes a patient localization system using WLAN at a hospital. The proposed method uses a hierarchical approach for robust localization. Candidate locations having higher probabilites are selected, and then are fed into a validation method that uses only distinctive APs for decision A strategy for acquiring accurate model probabilities for locations are also described. The proposed algorithms shows more robust results than the probability based method.