In this paper the authors propose a traffic information system based on the distribution of knowledge provided by the cars themselves. Prior work in this area attempted to realize this distribution via vehicular ad-hoc networks, i. e., by direct communication between cars. Such an approach faces serious problems due to capacity constraints, high data dissemination latencies, and limited initial deployment of the required technology. In this paper, the authors present a solution that is not based on ad-hoc networking, but is still fully decentralized. It establishes a peer-to-peer overlay over the Internet, using cellular Internet access. The authors present a structure for the overlay, a prototype implementation in a simulation environment, and results that underline the feasibility of such a system in a city scenario. They also provide an estimate of expected user benefits when their system is used for dynamic route guidance. The paper is structured as follows. In Section 2, the authors review related work on traffic information systems. They then take a closer look at the application in Section 3, before they introduce and discuss the proposed overlay structure in Section 4. The evaluation of the proposed solution with regard to bandwidth usage as well as an estimation of the travel time improvements when using dynamic route guidance can be found in Section 5. The authors conclude their work in Section 6.


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    Titel :

    PeerTIS - a peer-to-peer traffic information system


    Beteiligte:
    Rybicki, Jedrzej (Autor:in) / Scheuermann, Björn (Autor:in) / Koegel, Markus (Autor:in) / Mauve, Martin (Autor:in)


    Erscheinungsdatum :

    2009


    Format / Umfang :

    10 Seiten, 8 Bilder, 1 Tabelle, 31 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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