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Erschienen in: Wireless Networks 7/2021

02.09.2021 | Original Paper

Range-independent localization for GPS dead zone in MWSN

verfasst von: Sumit Kumar, Neera Batra, Shrawan Kumar

Erschienen in: Wireless Networks | Ausgabe 7/2021

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Abstract

Predominantly, GPS-free localization algorithms are either predictive or probabilistic or range-dependent which outrage energy source and computing power of sensor-nodes. Whereas, comparatively less complex algorithms based on range-independent approaches find GPS-free approaches unfeasible due to their everlasting dependency on GPS like DV-Hop, etc. This gap motivates to propose RiL-DZ, an estimative range-independent absolute localization algorithm for GPS dead zone in mobile wireless sensor networks. RiL-DZ has two steps- ALE, and UL. In ALE, for the dead zone anchor-nodes calculate their location by measuring their respective distance and angular movement. Subsequently in UL, the absolute location of the unknown-nodes is attained by estimating their distances from the anchor-nodes of ALE step using hop parameters. Further, for precise localization, RiL-DZ considers errors in distance estimation between the node-pairs and the imprecise approximation of the location of anchor-nodes caused by error-affected displacement measurements. Furthermore, the error factors of distances calculated in between anchor-nodes and intended unknown-node are minimized using linear programming. The simulation shows RiL-DZ absorbs displacement error notably than other contenders and GPS-assisted DV-Hop throughout. The analysis-of-variance establishes that RiL-DZ depends significantly on communication range and anchor-nodes density only by 40.81% and 29.09% respectively.

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Metadaten
Titel
Range-independent localization for GPS dead zone in MWSN
verfasst von
Sumit Kumar
Neera Batra
Shrawan Kumar
Publikationsdatum
02.09.2021
Verlag
Springer US
Erschienen in
Wireless Networks / Ausgabe 7/2021
Print ISSN: 1022-0038
Elektronische ISSN: 1572-8196
DOI
https://doi.org/10.1007/s11276-021-02773-1

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