Vehicular ad hoc networks have received a lot of attention in recent years. This attention is due to two reasons. First and foremost, there are a number of real-life applications that become possible in the presence of such an ad-hoc infrastructure. Examples include increasing road safety by reducing the number of accidents as well as reducing their impact in case of non-avoidable accidents, improving local traffic flow and efficiency of road traffic, and offering comfort and business applications to driver and passengers. Second, it is now technically possible to build such a network. Recent developments in radios, coupled with signicant research work in the area of mobile ad-hoc networks, make it likely to build such applications within five to ten years. To address this challenge, we propose using a new approach of routing that is tailored to the needs of vehicular ad hoc networks and is termed as mobility-assisted routing. Mobility-assisted routing departs drastically from the traditional view of networking: When a node (moving vehicle or a static roadside station) wants to send a message to one or more nodes (vehicles), it may transmit a number of copies of the message to one or more distinct relay nodes. Each relay will carry the message further, and may transmit it to a new, better relay or directly to a destination.


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    Title :

    Efficient Routing for Safety Applications in Vehicular Networks


    Contributors:
    K. Psounis (author)

    Publication date :

    2009


    Size :

    43 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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