Position-based routing (PBR) provides efficient and scalable routing in ad hoc networks with frequent topology changes and is a strong candidate for vehicular ad hoc networks (VANETs). Like all other routing protocols, simple PBR does not specify a value of power for transmission to the next hop and most commonly a high value is chosen in order to assure correct reception, which results in unnecessary harmful interference to other nodes. Based on a model for wireless communication, a cross-layer approach is developed combining routing scheme and transmit power control, called power-aware PBR for VANETs, that improves overall sharing of bandwidth. The scheme is implemented in a software prototype, set up an experimental testbed and conducted experiments with vehicles on German highways. By comparison with simple PBR, is can be concluded that power-aware PBR achieves considerable saving of power without impairing the probability of reception.


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    Titel :

    On power-aware greedy forwarding in highway scenarios


    Weitere Titelangaben:

    Ein Beitrag zum vorwärts gerichteten, leistungsstarken Erfassen von Autobahn-Szenarien


    Beteiligte:
    Festag, Andreas (Autor:in) / Baldessari, Roberto (Autor:in) / Wang, Hao (Autor:in)


    Erscheinungsdatum :

    2001


    Format / Umfang :

    6 Seiten, 5 Bilder, 1 Tabelle, 13 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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