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Optimum NN Algorithms Parameters on the UJIIndoorLoc for Wi-Fi Fingerprinting Indoor Positioning Systems

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published
Publication date5/01/2023
Host publication2022 32nd International Telecommunication Networks and Applications Conference (ITNAC)
PublisherIEEE
Pages280-286
Number of pages7
ISBN (electronic)9781665471039
ISBN (print)9781665471046
<mark>Original language</mark>English
Event32nd International Telecommunication Networks and Applications Conference - Wellingotn, New Zealand
Duration: 30/11/20222/12/2022

Conference

Conference32nd International Telecommunication Networks and Applications Conference
Country/TerritoryNew Zealand
CityWellingotn
Period30/11/222/12/22

Conference

Conference32nd International Telecommunication Networks and Applications Conference
Country/TerritoryNew Zealand
CityWellingotn
Period30/11/222/12/22

Abstract

Wi-Fi fingerprinting techniques are commonly used in Indoor Positioning Systems (IPS) as Wi-Fi signal is available in most indoor settings. In such systems, the position is estimated based on a matching algorithm between the enquiry points and the recorded fingerprint data. In this paper, our objective is to investigate and provide quantitative insight into the performance of various Nearest Neighbour (NN) algorithms. The NN algorithms such as KNN are also often employed in IPS. We extensively study the performance of several NN algorithms on a publicly available dataset, UJIIndoorLoc. Furthermore, we propose an improved version of the Weighted KNN algorithm. The proposed model outperforms the existing works on the UJIIndoorLoc dataset and achieves better results for the success rate and the mean positioning error.