A fast and accurate calibration algorithm for real-time locating systems based on the received signal strength indication

Title
A fast and accurate calibration algorithm for real-time locating systems based on the received signal strength indication
Author(s)
박용완나즐레이브[나즐레이브]유재황[유재황]유국열
Keywords
PREDICTION
Issue Date
201104
Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
Citation
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, v.65, no.4, pp.305 - 311
Abstract
With the recent growth of IEEE 802.11 based Wireless Local Area Networks (WLANs), there has been new research attempts to use the WLAN technology for location estimation applications in deep indoor environments where traditional locating algorithms are not effective. The received signal strength indication (RSSI) fingerprinting that uses WLAN infrastructure is a compelling approach due to its fast online tracking capability and to its accurate location estimation. However, the RSSI requires an exhaustive calibration phase to build a fingerprint database. To mitigate the time consuming property of the calibration process, several studies have proposed a number of propagation prediction models that derive the distance of a target object from RSSI values at the expense of lower location accuracy. In this study, we propose a new locating algorithm that combines the calibration procedure with the fingerprint prediction model. Our simulation results show that our new approach not only reduces the calibration time, but it also provides comparable location accuracy to that of the conventional calibration-based locating algorithm. (C) 2010 Elsevier GmbH. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/25374http://dx.doi.org/10.1016/j.aeue.2010.03.012
ISSN
1434-8411
Appears in Collections:
공과대학 > 모바일정보통신공학과 > Articles
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