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Base-Station Random Placement Effect on the Accuracy of Ultrawideband Body-Centric Localization Application

Bharadwaj, Richa, Swaisaenyakorn, Srijittra, Batchelor, John C., Koul, Shiban, Alomainy, Akram (2018) Base-Station Random Placement Effect on the Accuracy of Ultrawideband Body-Centric Localization Application. IEEE Antennas and Wireless Propagation Letters, 17 (7). pp. 1319-1323. ISSN 1536-1225. (doi:10.1109/LAWP.2018.2843881) (KAR id:73960)

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This letter presents an investigation on the effect of random placement of base stations on three-dimensional bodycentric localization in the ultrawideband frequency range. Different base station configurations are studied (varied in xyz-axis, xy-axis, and z-axis direction), keeping the same range estimation errorvaluesasobtainedfromthebody-centriclocalizationexperimental data in order to keep the main focus on the influence of the base-station configurations. It is observed that random positions of the base stations in the z-axis lead to higher localization error (3–8 cm) as the target nodes are spread out more in the z-axis direction. The localization error is analyzed in terms of geometric, horizontal, vertical dilution of precision (DOP), which is a measure of effectiveness of the placement of the base stations. For the DOP values (5–15), 1–3 cm error reduction is observed, and for higherDOP(>20)values,theerrorincreasesby3–5cmforshortrange communication. Further analysis is carried out by varying the range estimation error in terms of mean value and standard deviation for evaluating the random base-station configurations, which also plays an important role in the accuracy of estimating the location of the target.

Item Type: Article
DOI/Identification number: 10.1109/LAWP.2018.2843881
Uncontrolled keywords: Body-centric communication, dilution of precision (DOP), localization, ultrawideband (UWB), wearable antennas
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK6540 Radio > TK6570.M6 Mobile communication systems
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: John Batchelor
Date Deposited: 17 May 2019 14:44 UTC
Last Modified: 16 Feb 2021 14:04 UTC
Resource URI: (The current URI for this page, for reference purposes)
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