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Efficient Radio Map Construction Based on Low-Rank Approximation for Indoor Positioning
Joint Authors
Zhou, Wei
Wen, Zheng
Sun, Yanfeng
Yin, Baocai
Hu, Yongli
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Fingerprint-based positioning in a wireless local area network (WLAN) environment has received much attention recently.
One key issue for the positioning method is the radio map construction, which generally requires significant effort to collect enough measurements of received signal strength (RSS).
Based on the observation that RSSs have high spatial correlation, we propose an efficient radio map construction method based on low-rank approximation.
Different from the conventional interpolation methods, the proposed method represents the distribution of RSSs as a low-rank matrix and constructs the dense radio map from relative sparse measurements by a revised low-rank matrix completion method.
To evaluate the proposed method, both simulation tests and field experiments have been conducted.
The experimental results indicate that the proposed method can reduce the RSS measurements evidently.
Moreover, using the constructed radio maps for positioning, the positioning accuracy is also improved.
American Psychological Association (APA)
Hu, Yongli& Zhou, Wei& Wen, Zheng& Sun, Yanfeng& Yin, Baocai. 2013. Efficient Radio Map Construction Based on Low-Rank Approximation for Indoor Positioning. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1031903
Modern Language Association (MLA)
Hu, Yongli…[et al.]. Efficient Radio Map Construction Based on Low-Rank Approximation for Indoor Positioning. Mathematical Problems in Engineering No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1031903
American Medical Association (AMA)
Hu, Yongli& Zhou, Wei& Wen, Zheng& Sun, Yanfeng& Yin, Baocai. Efficient Radio Map Construction Based on Low-Rank Approximation for Indoor Positioning. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1031903
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031903