Tracking body movement for radio channel measurements in BAN with indoor positioning system

Sadowski, Jarosław; Rajchowski, Piotr; Cwalina, Krzysztof

doi:10.1109/ursiap-rasc.2016.7601349

Cited by 6 publications

(7 citation statements)

References 3 publications

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“…By using (4) it is possible to determine the α parameter of both filters as a function of the user's speed for the selected transmission frequency. The speed of human motion is in the range from 0.5 mps to 1.5 mps, which implies the selection of 40 ms transmission time intervals, suitable for monitoring and tracking systems operating in indoor environments [35,36]. As the wavelength for the UWB interface is about 4.6 cm, it is over seven times shorter than for the NB interface (34.6 cm).…”

Section: Proposed Novel Methods For Data Streams Allocationmentioning

confidence: 99%

A Novel Bitrate Adaptation Method for Heterogeneous Wireless Body Area Networks

et al. 2018

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In the article, a novel bitrate adaptation method for data streams allocation in heterogeneous Wireless Body Area Networks (WBANs) is presented. The efficiency of the proposed algorithm was compared with other known algorithms of data stream allocation using computer simulation. A dedicated simulator has been developed using results of measurements in the real environment. The usage of the proposed adaptive data streams allocation method by transmission rate adaptation based on radio channel parameters can increase the efficiency of resources’ usage in a heterogeneous WBANs, in relation to fixed bitrates transmissions and the use of well-known algorithms. This increase of efficiency has been shown regardless of the mobile node placement on the human body.

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Section: Proposed Novel Methods For Data Streams Allocationmentioning

confidence: 99%

A Novel Bitrate Adaptation Method for Heterogeneous Wireless Body Area Networks

et al. 2018

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“…The main goal of the simulation studies of the proposed method was to simulate its usage in the indoor hybrid localization system. The exemplary system was simulated on the basis of measurements and analysis of a real inertial navigation system dedicated for person tracking, basing on inertial navigation and RDMs [3,21].…”

Section: Simulation Studies Of Person Tracking In Hybrid Localizationmentioning

confidence: 99%

“…First, the power of signals from satellites received on the earth's surface is low and additional propagation path loss caused by the penetration of a radio signals into the building makes the reception almost impossible. Second, the accuracy of position estimation by using satellite systems, especially regarding the height, is insufficient for indoor applications [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Despite relatively good properties in terms of localization accuracy, such approach of positional data integration in a hybrid localization system does not eliminate the significant drawback of radiolocalization algorithms, which is the need of performing measurements of selected radio signal parameters in relation to or from at least three (in a two-dimensional variant) or four (in the three-dimensional variant) RNs. In the indoor environments, especially in facilities with disturbed propagation of a radio waves, such as rooms with thick walls or decks of a ships with steel structure [1][2][3], ensuring the possibility of performing the radio signal parameters measurements to the minimal number of RNs requires installation of a large number of them. In most cases it is impractical, mainly from economical point of view.…”

Section: Introductionmentioning

confidence: 99%

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Person Tracking in Ultra-Wide Band Hybrid Localization System Using Reduced Number of Reference Nodes

Rajchowski

Stefański

Sadowski

et al. 2020

Sensors

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In this article a novel method of positional data integration in an indoor hybrid localization system combining inertial navigation with radio distance measurements is presented. A point of interest is the situation when the positional data and the radio distance measurements are obtained from less than thee reference nodes and it is impossible to unambiguously localize the moving person due to undetermined set of positional equations. The presented method allows to continuously provide localization service even in areas with disturbed propagation of the radio signals. Authors performed simulation and measurement studies of the proposed method to verify the precision of position estimation of a moving person in an indoor environment. It is worth noting that to determine the simulation parameters and realize the experimental studies the hybrid localization system demonstrator was developed, combining inertial navigation and radio distance measurements. In the proposed solution, results of distance measurements taken to less than three reference nodes are used to compensate the drift of the position estimated using the inertial sensor. In the obtained simulation and experimental results it was possible to reduce the localization error by nearly 50% regarding the case when only inertial navigation was used, additionally keeping the long term root mean square error at the level of ca. 0.50 m. That gives a degradation of localization precision below 0.1 m with respect to the fusion Kalman filtration when four reference nodes are present.

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“…It is very important, both from the perspective of multimedia service providers, as well as the security point of view. The practical example of WBAN operating in the ferryboat is a system for remote tracking and monitoring of people, developed at the Department of Radio Communication Systems and Networks, Gdansk University of Technology [11]. This system was developed for the Polish Maritime Regional Unit of Border Guard, and its goal was to increase the security of the officers on duty.…”

Section: Related Workmentioning

confidence: 99%

An Off-Body Narrowband and Ultra-Wide Band Channel Model for Body Area Networks in a Ferryboat Environment

2018

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Abstract:In the article an off-body narrowband and ultra-wide band channel model for body area networks in a ferryboat environment is described. Considering the limited number of publications there is a need to develop an off-body channel model, which will facilitate the design of radio links, both from the multimedia services provider and the security point of view, for body area networks in this atypical environment. A mobile heterogeneous measurement stand, using radio distance measurements, which consists of three types of devices: miniaturized mobile nodes, stationary reference nodes, and a data acquisition server, was developed. A detailed analysis of both radio channels' parameters was carried out. An analysis of system loss for off-body communication, including mean system loss, large-scale fading (corresponding to body shadowing), and small-scale fading (associated with the multipath phenomenon), both for 868 MHz narrowband and for 6489 MHz ultra-wide band channels, was performed. A statistical analysis of the obtained system loss model parameters was also carried out; good fit to the empirical data is observed.

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Tracking body movement for radio channel measurements in BAN with indoor positioning system

Cited by 6 publications

References 3 publications

A Novel Bitrate Adaptation Method for Heterogeneous Wireless Body Area Networks

A Novel Bitrate Adaptation Method for Heterogeneous Wireless Body Area Networks

Person Tracking in Ultra-Wide Band Hybrid Localization System Using Reduced Number of Reference Nodes

An Off-Body Narrowband and Ultra-Wide Band Channel Model for Body Area Networks in a Ferryboat Environment

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