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Hybrid Algorithm for Floor Detection Using GSM Signals in Indoor Localisation Task

  • Marcin LucknerEmail author
  • Rafał Górak
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9648)

Abstract

One of challenging problems of indoor localisation based on GSM fingerprints is the detection of the current floor. We propose an off–line algorithm that labels fingerprints with the number of current floor. The algorithm uses one pass through the given route to learn the GSM fingerprints. After that the height on the testing passes of the same route can be estimated with high accuracy even for measures registered with various velocities and a month after the learning process. The two phase algorithm detects the points of a potential floor change. Next, the regression function normalises height of the change and calculates its direction. The obtained results are up to 40 % better than the results obtained by the pure regression.

Notes

Acknowledgments

The research is supported by the the National Centre for Research and Development, grant No PBS2/B3/24/2014, application No 208921.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Faculty of Mathematics and Information ScienceWarsaw University of TechnologyWarszawaPoland

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