aLS-Coop-Loc: cooperative combined localization and time-synchronization in underwater acoustic networks

W.A.P. van Kleunen, Nirvana Meratnia, Paul J.M. Havinga

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    Abstract

    Traditionally, underwater localization and time-synchronization are performed separately. This, however, requires two-way ranging between nodes to determine propagation delays resulting in high power consumption and communication overhead. One-way ranging can be used by using a combined time-synchronization and localization approach. While such an approach exists for non-cooperative networks, to the best of our knowledge no such approach exist for cooperative networks. A cooperative approach has significant benefits in terms of number of reference nodes required, flexibility of reference nodes, and accuracy of localization and time-synchronization. Therefore, in this paper we propose a cooperative combined localization and time-synchronization for underwater acoustic networks. We show our approach requires less communication and improves energy-efficiency of the ranging measurement phase, compared to existing Multi-Dimensional Scaling (MDS) approaches using two-way ranging or prior time-synchronization. Using simulation we evaluate the localization and time-synchronization accuracy of our approach and compare it with existing MDS approaches and a non-cooperative approach. Simulations shows that our cooperative approach outperforms non-cooperative approaches in terms of accuracy of localization and time-synchronization and is able to perform localization with fewer reference nodes. We also show that our approach outperforms MDS with prior time-synchronization in terms of accuracy.
    Original languageUndefined
    Title of host publicationProceedings of the Fourth Workshop on Design, Modeling and Evaluation of Cyber Physical Systems, CyPhy 2014
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery (ACM)
    Pages23-26
    Number of pages4
    ISBN (Print)978-1-4503-2871-5
    DOIs
    Publication statusPublished - Apr 2014

    Publication series

    Name
    PublisherACM

    Keywords

    • METIS-305891
    • EWI-24763
    • IR-91461

    Cite this

    van Kleunen, W. A. P., Meratnia, N., & Havinga, P. J. M. (2014). aLS-Coop-Loc: cooperative combined localization and time-synchronization in underwater acoustic networks. In Proceedings of the Fourth Workshop on Design, Modeling and Evaluation of Cyber Physical Systems, CyPhy 2014 (pp. 23-26). New York: Association for Computing Machinery (ACM). https://doi.org/10.1145/2593458.2593462