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http://dx.doi.org/10.7840/kics.2016.41.6.640

Effective ToA-Based Indoor Localization Method Considering Accuracy in Wireless Sensor Networks  

Go, Seungryeol (Agency for Defense Development (ADD))
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.41, no.6, 2016 , pp. 640-651 More about this Journal
Abstract
We propose an effective ToA-based localization method considering accuracy in indoor environments. The purpose of the localization system is to estimate the coordinates of the geographic location of target device. In indoor environments, accurately estimating the location of a target device is not easy due to various errors. The accuracy of wireless localization is influenced by NLOS errors. ToA-based localization measures the location of a target device using the distances between a mobile device and three or more base stations. However, each of the NLOS errors along a distance estimated from a target device to a base station is different because of dissimilar obstacles. To accurately estimate the target's location, an optimized localization process is needed in indoor environments. In this paper, effective ToA-based localization method process is proposed for improving accuracy in wireless sensor networks. Performance evaluations are presented, and the experimental localization system results are proved through comparisons of various localization methods with the proposed methods.
Keywords
Location based service; Localization; Location Estimation; Non-line of sight; Time of arrival;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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