2018
DOI: 10.3390/s18103390
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Real-Time Recursive Fingerprint Radio Map Creation Algorithm Combining Wi-Fi and Geomagnetism

Abstract: Fingerprint is a typical indoor-positioning algorithm, which measures the strength of wireless signals and creates a radio map. Using this radio map, the position is estimated through comparisons with the received signal strength measured in real-time. The radio map has a direct effect on the positioning performance; therefore, it should be designed accurately and managed efficiently, according to the type of wireless signal, amount of space, and wireless-signal density. This paper proposes a real-time recursi… Show more

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Cited by 3 publications
(2 citation statements)
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“…The fingerprint method is a common method for Wi-Fi indoor positioning [26][27][28][29][30][44][45][46][47][48][49], and various factors affect positioning results [50,51]. In this paper, we discuss the effects of three typical user poses and body shadowing on Wi-Fi signals.…”
Section: Discussionmentioning
confidence: 99%
“…The fingerprint method is a common method for Wi-Fi indoor positioning [26][27][28][29][30][44][45][46][47][48][49], and various factors affect positioning results [50,51]. In this paper, we discuss the effects of three typical user poses and body shadowing on Wi-Fi signals.…”
Section: Discussionmentioning
confidence: 99%
“…Common fingerprint methods firstly collect the received signal strength (RSS) data and corresponding coordinate information as the fingerprint database at each reference point (RP) in the offline phase. In the online phase, the user’s location can be determined with the best-fitted fingerprint by comparing the online-measured RSS with the fingerprint database [25,26,27,28,29]. Several conventional matching algorithms, such as K nearest neighbour (KNN) [30], weighted KNN (WKNN) [31], and Bayesian probability algorithm [32], can be used as fingerprint methods.…”
Section: Introductionmentioning
confidence: 99%