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http://dx.doi.org/10.5916/jkosme.2013.37.8.932

Indoor localization algorithm based on WLAN using modified database and selective operation  

Seong, Ju-Hyeon (Department of Electrical and Electronics Engineering, Korea Maritime and Ocean University)
Park, Jong-Sung (ACofS C4I, R. O. K. Naval Headquarters)
Lee, Seung-Hee (Department of Internet Game, Deakyeung University)
Seo, Dong-Hoan (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.37, no.8, 2013 , pp. 932-938 More about this Journal
Abstract
Recently, the Fingerprint, which is one of the methods of indoor localization using WLAN, has been many studied owing to robustness about ranging error by the diffraction and refraction of radio waves. However, in the signal gathering process and comparison operation for the measured signals with the database, this method requires time consumption and computational complexity. In order to compensate for these problems, this paper presents, based on proposed modified database, WLAN indoor localization algorithm using selective operation of collected signal in real time. The proposed algorithm reduces the configuration time and the size of the data in the database through linear interpolation and thresholding according to the signal strength, the localization accuracy, while reducing the computational complexity, is maintained through selective operation of the signals which are measured in real time. The experimental results show that the accuracy of localization is improved to 17.8% and the computational complexity reduced to 46% compared to conventional Fingerprint in the corridor by using proposed algorithm.
Keywords
Indoor localization; WLAN(Wireless LAN); Fingerprint; Database; Selective operation;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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