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Characterising the Alteration in the AP Distribution with the RSS Distance and the Position Estimates

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationIPIN 2018 - 9th International Conference on Indoor Positioning and Indoor Navigation
ISBN (Electronic)9781538656358
Publication statusPublished - Sep 2018
Publication typeA4 Article in a conference publication
EventInternational Conference on Indoor Positioning and Indoor Navigation - Nantes, France
Duration: 24 Sep 201827 Sep 2018

Publication series

ISSN (Electronic)2471-917X


ConferenceInternational Conference on Indoor Positioning and Indoor Navigation
Abbreviated titleIPIN 2018


Fingerprinting is widely used for indoor positioning, where pattern matching techniques are usually applied to signals from APs or Beacons. However, the real-time monitoring of the emitters is not an easy task in most cases. When an alteration in the emitters is not detected or properly fixed, it might have a severe impact in the accuracy of the indoor positioning algorithm. Simple but common alterations are energy failure, emitter replacement, wrong emitter placement after maintenance and AP displacement. This paper explores how the AP alteration might be automatically detected by computing the average of the RSS distance to the best match over multiple operational points. The experimental setup consider one simulated and two real scenarios to validate the proposed metric for detecting AP alternation. The results show that it is possible to detect AP alteration when it has a considerable impact in the IPS accuracy.

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