To solve intra-cluster and inter-cluster transmission collision problems in vehicular ad-hoc networks, this paper proposes a novel cluster-based collision-free multichannel medium access control (CCFM-MAC) protocol. All nodes are grouped into different clusters based on the link expiration times with their neighbors. Adjacent clusters use different channels to avoid inter-cluster interference. A cluster head (CH) is in charge of assigning time slots to its members according to their state and relative location to achieve packet transmissions without collisions. In addition, a CH allocates time slots to its members based on their traffic demands in order to guarantee the access fairness while improving throughput. Finally, simulation results show that the proposed protocol outperforms EDCA MAC protocol in terms of average throughput, average end-to-end delay and successful transmission probability.


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    Titel :

    A Clustering-Based Collision-Free Multichannel MAC Protocol for Vehicular Ad Hoc Networks


    Beteiligte:
    Zhang, Yue (Autor:in) / Liu, Kai (Autor:in) / Liu, Shanzhi (Autor:in) / Zhang, Jiaqi (Autor:in) / Zhang, Tao (Autor:in) / Xu, Zhen (Autor:in) / Liu, Feng (Autor:in)


    Erscheinungsdatum :

    01.08.2018


    Format / Umfang :

    928214 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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