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http://dx.doi.org/10.9717/kmms.2018.21.5.583

Wi-Fi Line-of-Sight Signal based Indoor Localization Method Using Smartphone and Two Dual-band APs  

Jo, Hyeonjeong (Dept. of Electronic Eng., Chungbuk National University)
An, Hyunseong (Dept. of Electronic Eng., Chungbuk National University)
Kim, Seungku (Dept. of Electronic Eng., Chungbuk National University)
Publication Information
Journal of Korea Multimedia Society / v.21, no.5, 2018 , pp. 583-591 More about this Journal
Abstract
With the development of ICT(Information and Communication Technology), the number of smart devices is rapidly increasing. LBS(Location Based Service) applications that provide user's location based service are used in various fields. There is also a growing demand for indoor precision positioning technology to provide seamless services. In this paper, we propose an indoor positioning system that estimates the location of a smartphone user. The proposed algorithm determines whether the received signal is LOS(Line-of-Sight) or NLOS(Non-Line of-Sight) in order to decrease multipath effect by the indoor environment. The proposed positioning algorithm is very simple and requires only the AP(Access Point) coordinates. In addition, it requires only two APs for estimating the location of a smartphone user. The proposed algorithm is a practically applicable technology without any additional hardware and kernel modification in the smartphone. In the experiment results, the reliability of the positioning system was found to be within 0.83 m.
Keywords
Dual-band AP; Indoor Positioning; LOS/NLOS; Smartphone; Wi-Fi;
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Times Cited By KSCI : 1  (Citation Analysis)
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