eprintid: 3215
rev_number: 7
eprint_status: archive
userid: 14
dir: disk0/00/00/32/15
datestamp: 2018-12-12 03:10:57
lastmod: 2018-12-12 03:10:57
status_changed: 2018-12-12 03:10:57
type: conference_item
metadata_visibility: show
creators_name: Ta, Viet Cuong
creators_name: Dao, Trung Kien
creators_name: Vaufreydaz, Dominique
creators_name: Castelli, Eric
title: Smartphone-based user positioning in a multiple-user context with Wi-Fi and Bluetooth
ispublished: pub
subjects: IT
divisions: fac_fit
abstract: In a multi-user context, the Bluetooth data from the smartphone could give an approximation of the distance between users.  Meanwhile, the Wi-Fi data can be used to calculate the user’s position directly. However, both the Wi-Fi-based position outputs and Bluetooth-based distances are affected by some degree of noise. In our work, we propose several approaches to combine the two types of outputs for improving the tracking accuracy in the context of collaborative positioning. The two proposed approaches attempt to build a model for measuring the errors of the Bluetooth output and Wi-Fi output. In a non-temporal approach, the model establishes the relationship in a specific interval of the Bluetooth output and Wi-Fi output. In a temporal approach, the error measurement model is expanded to include the time component between users’ movement. To evaluate the performance of the two approaches, we collected the data from several multi-user scenarios in indoor environment. The results show that the proposed approaches could reach a distance error around 3.0m for 75 percent of time, which outperforms the positioning results of the standard Wi-Fi fingerprinting model.
date: 2018-09-24
date_type: published
official_url: https://ieeexplore.ieee.org/document/8533809
full_text_status: none
pres_type: paper
pagerange: 206-212
event_title: 2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN)
event_location: Nantes, France
event_dates: 24-27 September 2018
event_type: conference
refereed: TRUE
citation:   Ta, Viet Cuong and Dao, Trung Kien and Vaufreydaz, Dominique and Castelli, Eric  (2018) Smartphone-based user positioning in a multiple-user context with Wi-Fi and Bluetooth.  In: 2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 24-27 September 2018, Nantes, France.