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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    Title :

    On power-aware greedy forwarding in highway scenarios


    Additional title:

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


    Contributors:


    Publication date :

    2001


    Size :

    6 Seiten, 5 Bilder, 1 Tabelle, 13 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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