Localization of isotropic and anisotropic wireless sensor networks in 2D and 3D fields

Bhat, Soumya J and Santhosh, K V Localization of isotropic and anisotropic wireless sensor networks in 2D and 3D fields. Telecommunication Systems, 79. pp. 309-321. ISSN 1018-4864

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Abstract

Internet of Things (IoT) has changed the way people live by transforming everything into smart systems. Wireless Sensor Network (WSN) forms an important part of IoT. This is a network of sensor nodes that is used in a vast range of applications. WSN is formed by the random deployment of sensor nodes in various fields of interest. The practical fields of deployment can be 2D or 3D, isotropic or anisotropic depending on the application. The localization algorithms must provide accurate localization irrespective of the type of field. In this paper, we have reported a localization algorithm called Range Reduction Based Localization (RRBL). This algorithm utilizes the properties of hop-based and centroid methods to improve the localization accuracy in various types of fields. In this algorithm, the location unknown nodes identify the close-by neighboring nodes within a predefined threshold and localize themselves by identifying and reducing the probable range of existence from these neighboring nodes. The nodes which do not have enough neighbors are localized using the least squares method. The algorithm is tested in various irregular and heterogeneous conditions. The results are compared with a few state-of-the-art hop-based and centroid-based localization techniques. RRBL has shown an improvement in localization accuracy of 28% at 10% reference node ratio and 26% at 20% reference node ratio when compared with other localization algorithms

Item Type: Article
Uncontrolled Keywords: Anisotropic network · Heterogeneous network · Internet of things · Irregular fields · Range-free localization · Wireless sensor network
Subjects: Engineering > MIT Manipal > Instrumentation and Control
Depositing User: MIT Library
Date Deposited: 03 Mar 2022 06:29
Last Modified: 03 Mar 2022 06:29
URI: http://eprints.manipal.edu/id/eprint/158358

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