Skip to Main content Skip to Navigation
Journal articles

Probabilistic Radio-Frequency Fingerprinting and Localization on the Run

Abstract : Indoor localization is a key enabler for pervasive computing and network optimization. WLAN positioning systems typically rely on fingerprints of Received Signal-Strength (RSS) measures from access points. In this paper, we review approaches for modeling full distributions of WiFi signals, including Bayesian graphical models, smoothing, compressive sensing and random field differentiation and concentrate on the Kullback-Leibler divergence metric that compares multivariate RSS distributions. We provide theoretical insights on the required spatial density of fingerprints and on the number of samples necessary, during tracking or during signal map building, to differentiate among signal distributions and to provide accurate location estimates. We validate our methods on contrasting datasets where we obtain state-of-the-art localization results. Finally, we exploit datasets collected by a self- localizing mobile robot that records WiFi continuously along with ground truth position, where we define increasingly denser fingerprint grids and study asymptotic localization accuracy.
Document type :
Journal articles
Complete list of metadata
Contributor : Dimitrios Milioris <>
Submitted on : Thursday, November 21, 2013 - 10:40:05 AM
Last modification on : Wednesday, June 24, 2020 - 4:18:58 PM



Piotr Mirowski, Dimitrios Milioris, Phil Whiting, Tin Kam Ho. Probabilistic Radio-Frequency Fingerprinting and Localization on the Run. Bell Labs Technical Journal, Wiley, 2014, 18 (4), pp.111-133. ⟨10.1002/bltj.21649⟩. ⟨hal-00907354⟩



Record views