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Connectivity-based and anchor-free localization in large-scale 2D/3D sensor networks

Published: 06 December 2013 Publication History

Abstract

A connectivity-based and anchor-free three-dimensional localization (CATL) scheme is presented for large-scale sensor networks with concave regions. It distinguishes itself from previous work with a combination of three features: (1) it works for networks in both 2D and 3D spaces, possibly containing holes or concave regions; (2) it is anchor-free and uses only connectivity information to faithfully recover the original network topology, up to scaling and rotation; (3) it does not depend on the knowledge of network boundaries, which suits it well to situations where boundaries are difficult to identify. The key idea of CATL is to discover the notch nodes, where shortest paths bend and hop-count-based distance starts to significantly deviate from the true Euclidean distance. An iterative protocol is developed that uses a notch-avoiding multilateration mechanism to localize the network. Simulations show that CATL achieves accurate localization results with a moderate per-node message cost.

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  1. Connectivity-based and anchor-free localization in large-scale 2D/3D sensor networks

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    Published In

    cover image ACM Transactions on Sensor Networks
    ACM Transactions on Sensor Networks  Volume 10, Issue 1
    November 2013
    559 pages
    ISSN:1550-4859
    EISSN:1550-4867
    DOI:10.1145/2555947
    Issue’s Table of Contents
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    Publication History

    Published: 06 December 2013
    Accepted: 01 February 2013
    Revised: 01 February 2013
    Received: 01 October 2012
    Published in TOSN Volume 10, Issue 1

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    Author Tags

    1. 3D localization
    2. Sensor networks
    3. algorithm/protocol design

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