Localization of Wi-Fi Access Point Using Smart Phone's GPS Information

Seung-Man CHUN  Seung-Mu LEE  Jae-Wook NAH  Jong-Tae PARK  

IEICE TRANSACTIONS on Communications   Vol.E96-B   No.1   pp.305-308
Publication Date: 2013/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.305
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network System
access point,  localization of wireless LAN,  LBS,  smartphone GPS,  

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Precise localization of the Wi-Fi Access Point (AP) is becoming increasingly important with the rise of diverse location-based and smart phone-based services. In this article, we propose a new method for precise Wi-Fi AP localization using GPS information of a smart phone. The idea is that the possible area of Wi-Fi AP location, termed AP_Area, is first determined by measuring GPS information and the received signal strength of smart phones. As the number of measurements from users' smart phones increases, the AP_Area is successively narrowed down to the true AP location. Simulation shows the proposed algorithm can detect the Wi-Fi AP's localization within 5 m (probability exceeds 90%).