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Sensors 2016, 16(8), 1278; doi:10.3390/s16081278

On the Dynamic RSS Feedbacks of Indoor Fingerprinting Databases for Localization Reliability Improvement

1
School of Computer Software, Tianjin University, Tianjin 300072, China
2
Bohai Securities Co., Ltd., Tianjin 300072, China
*
Author to whom correspondence should be addressed.
Academic Editor: Yunchuan Sun
Received: 22 March 2016 / Revised: 30 June 2016 / Accepted: 25 July 2016 / Published: 15 August 2016
(This article belongs to the Special Issue Identification, Information & Knowledge in the Internet of Things)
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Abstract

Location data is one of the most widely used context data types in context-aware and ubiquitous computing applications. To support locating applications in indoor environments, numerous systems with different deployment costs and positioning accuracies have been developed over the past decade. One useful method, based on received signal strength (RSS), provides a set of signal transmission access points. However, compiling a remeasurement RSS database involves a high cost, which is impractical in dynamically changing environments, particularly in highly crowded areas. In this study, we propose a dynamic estimation resampling method for certain locations chosen from a set of remeasurement fingerprinting databases. Our proposed method adaptively applies different, newly updated and offline fingerprinting points according to the temporal and spatial strength of the location. To achieve accuracy within a simulated area, the proposed method requires approximately 3% of the feedback to attain a double correctness probability comparable to similar methods; in a real environment, our proposed method can obtain excellent 1 m accuracy errors in the positioning system. View Full-Text
Keywords: location estimation; RSS fingerprinting; Bluetooth low energy; adaptive RSS fingerprint; feedbacks location estimation; RSS fingerprinting; Bluetooth low energy; adaptive RSS fingerprint; feedbacks
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wen, X.; Tao, W.; Own, C.-M.; Pan, Z. On the Dynamic RSS Feedbacks of Indoor Fingerprinting Databases for Localization Reliability Improvement. Sensors 2016, 16, 1278.

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