Geo-localization information is a key component for providing location-based services for Intelligent Transportation Systems (ITS). Generally obtained by GPS devices and transmitted by Wireless Vehicular Communications, geo-localization in ITS represents a promising approach to reach objectives such as an increased road safety, transport efficiency, or on-the-road services. Despite its popularity, the issue of the overhead generated by the transmission of geo-localization data has not been addressed by the ITS community. In this paper, we first discuss the format of the information provided by GPS devices and propose a flexible message structure for exchanging geo-localization data. Then, we illustrate the significant overhead generated by the transmission of such information and propose a compression method achieving up to 70% overhead reduction without loss of precision. We finally test our method on the OLSR routing protocol.


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    Titel :

    Rethinking the Overhead of Geo-Localization Information for Vehicular Communications


    Beteiligte:
    Harri, J. (Autor:in) / Filali, F. (Autor:in) / Bonnet, C. (Autor:in)


    Erscheinungsdatum :

    01.09.2007


    Format / Umfang :

    131552 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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