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WiFi Positioning Based on User Orientation Estimation and Smartphone Carrying Position Recognition
Joint Authors
Qu, Zhiyu
Deng, Zhian
Hou, Changbo
Si, Weijian
Zhang, Chunjie
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Information Technology and Computer Science
Abstract EN
Accuracy performance of WiFi fingerprinting positioning systems deteriorates severely when signal attenuations caused by human body are not considered.
Previous studies have proposed WiFi fingerprinting positioning based on user orientation using compasses built in smartphones.
However, compasses always cannot provide required accuracy of user orientation estimation due to the severe indoor magnetic perturbations.
More importantly, we discover that not only user orientations but also smartphone carrying positions may affect signal attenuations caused by human body greatly.
Therefore, we propose a novel WiFi fingerprinting positioning approach considering both user orientations and smartphone carrying positions.
For user orientation estimation, we deploy Rotation Matrix and Principal Component Analysis (RMPCA) approach.
For carrying position recognition, we propose a robust Random Forest classifier based on the developed orientation invariant features.
Experimental results show that the proposed WiFi positioning approach may improve positioning accuracy significantly.
American Psychological Association (APA)
Deng, Zhian& Qu, Zhiyu& Hou, Changbo& Si, Weijian& Zhang, Chunjie. 2018. WiFi Positioning Based on User Orientation Estimation and Smartphone Carrying Position Recognition. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1216067
Modern Language Association (MLA)
Deng, Zhian…[et al.]. WiFi Positioning Based on User Orientation Estimation and Smartphone Carrying Position Recognition. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1216067
American Medical Association (AMA)
Deng, Zhian& Qu, Zhiyu& Hou, Changbo& Si, Weijian& Zhang, Chunjie. WiFi Positioning Based on User Orientation Estimation and Smartphone Carrying Position Recognition. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1216067
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1216067