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Article

Empirical Overview of Benchmark Datasets for Geomagnetic Field-Based Indoor Positioning

Department of Information and Communication Engineering, Yeungnam University, Gyeongbuk, Gyeongsan-si 38541, Korea
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Author to whom correspondence should be addressed.
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Academic Editor: Aboelmagd Noureldin
Sensors 2021, 21(10), 3533; https://doi.org/10.3390/s21103533
Received: 2 March 2021 / Revised: 7 May 2021 / Accepted: 14 May 2021 / Published: 19 May 2021
(This article belongs to the Special Issue Smartphone Sensors for Indoor Positioning)
Indoor positioning and localization have been regarded as some of the most widely researched areas during the last decade. The wide proliferation of smartphones and the availability of fast-speed internet have initiated several location-based services. Concerning the importance of precise location information, many sensors are embedded into modern smartphones. Besides Wi-Fi positioning, a rich variety of technologies have been introduced or adopted for indoor positioning such as ultrawideband, infrared, radio frequency identification, Bluetooth beacons, pedestrian dead reckoning, and magnetic field, etc. However, special emphasis is put on infrastructureless approaches like Wi-Fi and magnetic field-based positioning, as they do not require additional infrastructure. Magnetic field positioning is an attractive solution for indoors; yet lack of public benchmarks and selection of suitable benchmarks are among the big challenges. While several benchmarks have been introduced over time, the selection criteria of a benchmark are not properly defined, which leads to positioning results that lack generalization. This study aims at analyzing various public benchmarks for magnetic field positioning and highlights their pros and cons for evaluation positioning algorithms. The concept of DUST (device, user, space, time) and DOWTS (dynamicity, orientation, walk, trajectory, and sensor fusion) is introduced which divides the characteristics of the magnetic field dataset into basic and advanced groups and discusses the publicly available datasets accordingly. View Full-Text
Keywords: magnetic field data benchmarks; indoor positioning; smartphone sensors; benchmark analysis; magnetic field positioning magnetic field data benchmarks; indoor positioning; smartphone sensors; benchmark analysis; magnetic field positioning
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MDPI and ACS Style

Ashraf, I.; Din, S.; Hur, S.; Kim, G.; Park, Y. Empirical Overview of Benchmark Datasets for Geomagnetic Field-Based Indoor Positioning. Sensors 2021, 21, 3533. https://doi.org/10.3390/s21103533

AMA Style

Ashraf I, Din S, Hur S, Kim G, Park Y. Empirical Overview of Benchmark Datasets for Geomagnetic Field-Based Indoor Positioning. Sensors. 2021; 21(10):3533. https://doi.org/10.3390/s21103533

Chicago/Turabian Style

Ashraf, Imran, Sadia Din, Soojung Hur, Gunzung Kim, and Yongwan Park. 2021. "Empirical Overview of Benchmark Datasets for Geomagnetic Field-Based Indoor Positioning" Sensors 21, no. 10: 3533. https://doi.org/10.3390/s21103533

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