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Wireless and Satellite Systems. 11th EAI International Conference, WiSATS 2020, Nanjing, China, September 17-18, 2020, Proceedings, Part II

Research Article

AODMAC: An Adaptive and On-Demand TDMA-Based MAC for Vehicular Ad Hoc Networks

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  • @INPROCEEDINGS{10.1007/978-3-030-69072-4_8,
        author={Yaodong Ma and Kai Liu and Xiling Luo and Tao Zhang and Feng Liu},
        title={AODMAC: An Adaptive and On-Demand TDMA-Based MAC for Vehicular Ad Hoc Networks},
        proceedings={Wireless and Satellite Systems. 11th EAI International Conference, WiSATS 2020, Nanjing, China, September 17-18, 2020, Proceedings, Part II},
        proceedings_a={WISATS PART 2},
        year={2021},
        month={2},
        keywords={VANETs Adaptive MAC On-demand TDMA-based Distributed},
        doi={10.1007/978-3-030-69072-4_8}
    }
    
  • Yaodong Ma
    Kai Liu
    Xiling Luo
    Tao Zhang
    Feng Liu
    Year: 2021
    AODMAC: An Adaptive and On-Demand TDMA-Based MAC for Vehicular Ad Hoc Networks
    WISATS PART 2
    Springer
    DOI: 10.1007/978-3-030-69072-4_8
Yaodong Ma1,*, Kai Liu1, Xiling Luo1, Tao Zhang1, Feng Liu1
  • 1: School of Electronics and Information Engineering, Beihang University
*Contact email: 15257557503@163.com

Abstract

To solve the high transmission collisions and channel resource wastage problems in unbalanced traffic conditions of VANETs, an adaptive and on-demand TDMA-based MAC (AODMAC) protocol is proposed. A dynamic frame is partitioned into equal slot sets according to the lane numbers, and each lane has its own disjoint time slot set for vehicles to access. The key operation of AODMAC is that it can adaptively adjust the size of slot set according to the different traffic density in each lane. Due to each lane can acquire its slot set on-demand, AODMAC can be efficient in both balanced and unbalanced traffic load scenarios. Before a vehicle can acquire a time slot, it should judge the traffic load of its lane. If the density has exceeded a threshold, the node should augment its slot set size from the other lane. Simulation results show that the proposed protocol outperforms VeMAC and MoMAC in terms of the transmission collision rate and channel utilization, especially in high traffic load and unbalanced conditions.

Keywords
VANETs Adaptive MAC On-demand TDMA-based Distributed
Published
2021-02-28
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-69072-4_8
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