In this paper, the authors propose to apply Contention-Based Forwarding (CBF) to Vehicular Ad Hoc Networks (VANETs). CBF is a greedy position based forwarding algorithm that does not require proactive transmission of beacon messages. CBF performance is analyzed using realistic movement patterns of vehicles on a highway. It will be shown by means of simulation that CBF as well as traditional position-based routing (PBR) achieve a delivery rate of almost 100% given that connectivity exists. However, CBF has a much lower forwarding overhead than PBR since PBR can achieve high delivery ratios only by implicitly using a trial-and-error next-hop selection strategy. With CBF, a better total throughput can be achieved. The authors further discuss several optimizations of CBF for its use in VANETs, in particular a new position-encoding scheme that naturally allows for communication paradigms such as 'street geocast' and 'street flooding'. The discussions show that CBF can be viewed as a concept for convergence of intelligent flooding, geocast, and multihop forwarding in the area of inter-vehicle communication.


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    Titel :

    Contention-based forwarding for street scenarios


    Weitere Titelangaben:

    Vorausschauender digitaler Botschaftsaustausch für Strassenszenarien


    Beteiligte:


    Erscheinungsdatum :

    2004


    Format / Umfang :

    5 Seiten, 2 Bilder, 13 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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