Weight Clustering Based TDMA-MAC Scheme in VANET

  • Xie J
  • Li C
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Abstract

In vehicle ad hoc network (VANET), the active safety messages, e.g. safety critical application (SCA) information, must be distributed timely by radio channels among vehicles to improve the driver safety. A weight clustering based TDMA-MAC scheme for VANET is presented in this paper. Considering the constrains of radio signal transmitting power in Green Communication, the vehicles (nodes) energy consumption in VANET is chosen as one important factor for cluster-head (CH) election, and entropy weight is calculated, which can reflect the subjective intention. For the clustering MAC scheme, each node in a cluster is allowed to communicate by borrowing the scheduling time slots that assigned to other nodes at an access probability. Simulation results reveal the values of access probability for which the network throughput and energy consumption under the weight clustering based MAC scheme yields the better performance compared to the region-based clustering MAC policy. Also, it has the lower average packet contention period, at the expense of a little longer average transmission time of SCA packet. © 2016, KoREMA. All rights reserved.

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Xie, J., & Li, C. (2016). Weight Clustering Based TDMA-MAC Scheme in VANET. Automatika, 57(1), 252–260. https://doi.org/10.7305/automatika.2016.07.885

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