Optimum reference node deployment for TOA-based localization

Tong, Kejun; Wang, Xianbin; Khabbazibasmenj, Arash; Dounavis, A.

doi:10.1109/icc.2015.7248825

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…This method narrows down reference nodes for position estimation by considering the positional bias of the reference nodes, reducing the number of reference nodes required for target positioning. Under the premise that the positioning target is in a specific area, the selection of the reference node position in the area is studied [51], and the best placement position of the reference node is obtained. However, this method is not suitable for scenarios where movable reference nodes are applied [52].…”

Section: Positioning Based On Reference Nodesmentioning

confidence: 99%

A Review of Device-Free Indoor Positioning for Home-Based Care of the Aged: Techniques and Technologies

Chen¹,

Cheng²,

Shao³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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With the development of urbanization, the problem of neurological diseases brought about by population aging has gradually become a social problem of worldwide concern. Aging leads to gradual degeneration of the central nervous system, shrinkage of brain tissue, and decline in physical function in many elderlies, making them susceptible to neurological diseases such as Alzheimer's disease (AD), stroke, Parkinson's and major depressive disorder (MDD). Due to the influence of these neurological diseases, the elderly have troubles such as memory loss, inability to move, falling, and getting lost, which seriously affect their quality of life. Tracking and positioning of elderly with neurological diseases and keeping track of their location in real-time are necessary and crucial in order to detect and treat dangerous and unexpected situations in time. Considering that the elderly with neurological diseases forget to wear a positioning device or have mobility problems due to carrying a positioning device, device-free positioning as a passive positioning technology that detects device-free individuals is more suitable than traditional active positioning for the home-based care of the elderly with neurological diseases. This paper provides an extensive and in-depth survey of device-free indoor positioning technology for home-based care and an in-depth analysis of the main features of current positioning systems, as well as the techniques, technologies and methods they employ, from the perspective of the needs of the elderly with neurological conditions. Moreover, evaluation criteria and possible solutions of positioning techniques for the home-based care of the elderly with neurological conditions are proposed. Finally, the opportunities and challenges for the development of indoor positioning technology in 6G mobile networks for home-based care of the elderly with neurological diseases are discussed. This review has provided comprehensive and effective tracking and positioning techniques, technologies and methods for the elderly, by which we can obtain the location information of the elderly in real-time and make home-based care more comfortable and safer for the elderly with neurological diseases.

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Section: Positioning Based On Reference Nodesmentioning

confidence: 99%

A Review of Device-Free Indoor Positioning for Home-Based Care of the Aged: Techniques and Technologies

Chen¹,

Cheng²,

Shao³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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“…For the system design, existing research in the literature has focused on different performance requirements of the system design. e authors of [10][11][12] presented the system design structure for the IPSs based on Triangulation. ey focused on the improvement of the positioning performance under a limited number of RNs and minimizing the number of RNs.…”

Section: Related Workmentioning

confidence: 99%

“…Achieving the optimal coverage of a certain area while simultaneously minimizing the necessary number of RNs was their focus. Tong et al [12] proposed an optimum RN placement for the TOA technique by minimizing the Cramer-Rao Bound (CRB) of localization error. e objective of their system design was to achieve the highest localization accuracy when the reference nodes have uniform angular distribution around the service area.…”

Section: Related Workmentioning

confidence: 99%

RoC: Robust and Low-Complexity Wireless Indoor Positioning Systems for Multifloor Buildings Using Location Fingerprinting Techniques

Maneerat

Kaemarungsi

2019

Mobile Information Systems

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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.

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On the Precision of Common Individual or Hybrid Positioning Systems

Gunia

Joram

et al. 2019

2019 International Conference on Localization and GNSS (ICL-GNSS)

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Optimum reference node deployment for TOA-based localization

Cited by 7 publications

References 11 publications

A Review of Device-Free Indoor Positioning for Home-Based Care of the Aged: Techniques and Technologies

A Review of Device-Free Indoor Positioning for Home-Based Care of the Aged: Techniques and Technologies

RoC: Robust and Low-Complexity Wireless Indoor Positioning Systems for Multifloor Buildings Using Location Fingerprinting Techniques

On the Precision of Common Individual or Hybrid Positioning Systems

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