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RoC: Robust and low-complexity wireless indoor positioning systems for multifloor buildings using location fingerprinting techniques
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Document Title
RoC: Robust and low-complexity wireless indoor positioning systems for multifloor buildings using location fingerprinting techniques
Author
Maneerat K., Kaemarungsi K., Yim J.
Name from Authors Collection
Affiliations
National Electronics and Computer Technology Center, NSTDA, Pathumthani, Thailand
Type
Article
Source Title
Mobile Information Systems
ISSN
1574017X
Year
2019
Volume
2019
Open Access
All Open Access, Gold, Green
Publisher
Hindawi Limited
DOI
10.1155/2019/5089626
Format
Abstract
Most existing wireless indoor positioning systems have only success performance requirements in normal operating situations whereby all wireless equipment works properly. There remains a lack of system reliability that can support emergency situations when there are some reference node failures, such as in earthquake and fire scenarios. Additionally, most systems do not incorporate environmental information such as temperature and relative humidity level into the process of determining the location of objects inside the building. To address these gaps, we propose a novel integrated framework for wireless indoor positioning systems based on a location fingerprinting technique which is called the Robust and low Complexity indoor positioning systems framework (RoC framework). Our proposed integrated framework consists of two essential indoor positioning processes: The system design process and the localization process. The RoC framework aims to achieve robustness in the system design structure and reliability of the target location during the online estimation phase either under a normal situation or when some reference nodes (RNs) have failed. The availability of low-cost temperature and relative humidity sensors can provide additional information for the location fingerprinting technique and thereby reduce location estimation complexity by including this additional information. Experimental results and comparative performance evaluation revealed that the RoC framework can achieve robustness in terms of the system design structure, whereby it was able to provide the highest positioning performance in either fault-free or RN-failure scenarios. Moreover, in the online estimation phase, the proposed framework can provide the highest reliability of the target location under the RN-failure scenarios and also yields the lowest computational complexity in online searching compared to other techniques. Specifically, when compared to the traditional weighted k-nearest neighbor techniques (WKNN) under the 30% RN-failure scenario at Building B, the proposed RoC framework shows 74.1% better accuracy performance and yields 55.1% lower computational time than the WKNN. © 2019 Kriangkrai Maneerat and Kamol Kaemarungsi.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Knowledge Taxonomy Level 3
Funding Sponsor
Suranaree University of Technology
License
N/A
Rights
N/A
Publication Source
Scopus