Vehicular Adhoc Networks will significantly rely on message forwarding based on position. This requires scalable, efficient and effective solutions, so as to support a large number of nodes and timely deliver safety-warning messages. This paper presents and studies a protocol (MQ-Mapcast) for message forwarding, which leverages both node position and urban topological information so as to prevent potential broadcast storms. Based on a previous version of the protocol, MQ-Mapcast can support multiple concurrent traffic flows and background traffic, by means of a flexible queuing architecture. Simulations, in a realistic urban environment and in presence of urban obstructions, show that our scheme significantly outperforms classic geocasting of safety messages, in terms of packet delivery ratio, latency and channel usage.


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    Titel :

    MQ-Mapcast: A Map-Aware Protocol for Optimized Forwarding in Urban VANETs


    Beteiligte:
    Scopigno, R. (Autor:in) / Cozzetti, H.A. (Autor:in) / Brofferio, A. (Autor:in) / Casetti, C. (Autor:in) / Chiasserini, C.F. (Autor:in)


    Erscheinungsdatum :

    2012-12-01


    Format / Umfang :

    654512 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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