Censored cooperative positioning for dense wireless networks

Kallol Das, Henk Wymeersch

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    23 Citations (Scopus)


    Cooperative positioning is an emerging topic in wireless sensor networks and navigation. It can improve the positioning accuracy and coverage in GPS-challenged conditions such as inside tunnels, in urban canyons, and indoors. Different algorithms have been proposed relying on iteratively exchanging and updating positional information. For the purpose of computational complexity, network traffic, and latency, it is desirable to minimize the amount of information shared between devices, while still maintaining acceptable performance. We show that information that is not reliable should not be shared, and information that is not informative should not be used. This naturally leads to censoring schemes. We consider different censoring schemes based on the Cramér Rao bound (CRB). We find that by blocking the broadcasts of the nodes that do not have reliable estimates (transmit censoring) and selecting the most usable links after receiving signals from neighbors (receive censoring), complexity and traffic can be reduced significantly without degrading positioning performance.
    Original languageUndefined
    Title of host publication2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops
    Place of PublicationUSA
    Number of pages5
    ISBN (Print)978-1-4244-9117-9
    Publication statusPublished - Sep 2010
    Event21st IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2010 - Istanbul, Turkey
    Duration: 26 Sep 201030 Sep 2010
    Conference number: 2010

    Publication series

    PublisherIEEE Communications Society


    Workshop21st IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2010
    Abbreviated titlePIMRC
    Internet address


    • METIS-277721
    • IR-77805
    • Wireless Sensor Networks
    • Cramér Rao bound
    • GPS challenged conditions
    • EWI-20344
    • censored cooperative positioning
    • positioning accuracy
    • dense wireless networks
    • urban canyons
    • Computational Complexity

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