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Erschienen in: Wireless Personal Communications 3/2021

18.11.2020

Optimized Distance Range Free Localization Algorithm for WSN

verfasst von: Sumit Kumar, Shrawan Kumar, Neera Batra

Erschienen in: Wireless Personal Communications | Ausgabe 3/2021

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Abstract

DV-Hop and its various improvements overexpose hop size and hop count for localization. Whereas hop size is always erroneous and hops path is not a straight line, which leads to a faulty location estimation. The proposed model optimized distance range free (ODR) localization algorithm limits the use of hop size and hop count to approximate nearly a straight line distance between a known and an unknown node without additional hardware and without increasing extra communication. The refrain use of hop size and hop count improves localization accuracy of ODR and makes it robust against those network variables which affect the hop size accuracy adversely. In fact, ODR modifies the last two steps of DV-Hop. DV-Hop finds hop size in its second step. Here ODR rectifies this hop size and then a centroid is obtained from the minimum distant anchor nodes for an unknown node. Now a minimum possible distance known as base distance is estimated with a routing table assistance. In the last step, DV-Hop uses least square regression to localize, while ODR exploits linear optimization to comprehend the base distance for localization. The paper establishes ODR analytically and rugged with ranging error of the omnidirectional antenna coverage pattern experimentally.

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Metadaten
Titel
Optimized Distance Range Free Localization Algorithm for WSN
verfasst von
Sumit Kumar
Shrawan Kumar
Neera Batra
Publikationsdatum
18.11.2020
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2021
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-020-07950-7

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