Abstract
The relative velocity between vehicles plays an important role in inter-vehicle network that has to support high mobility. The communication efficiency of the network is affected considerably by a rapid change of network topology depending on the relative velocity. A novel MAC scheme, RV-CSMA/CA (Relative Velocity-Carrier Sense Multiple Access with Collision Avoidance) is proposed in this paper. The MAC scheme can improve the efficiency, as compared to that of using the standard CSMA/CA of IEEE 802.11 MAC. The principal protocol of the MAC scheme is to update the RTS (Request To Send) threshold as a function of the relative velocity and the length of the data frames. The updated threshold is used to determine the MAC multiple-access mechanism. Simulation results using a Qualnet network simulator show that the proposed protocol exhibits superior performance to the extant protocol in inter-vehicle network.
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Jung, S., Shenglei, X., Lee, S. (2008). RV-CSMA/CA: Relative Velocity-CSMA/CA Mechanism for Inter-vehicle Network. In: Gervasi, O., Murgante, B., Laganà, A., Taniar, D., Mun, Y., Gavrilova, M.L. (eds) Computational Science and Its Applications – ICCSA 2008. ICCSA 2008. Lecture Notes in Computer Science, vol 5072. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69839-5_68
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DOI: https://doi.org/10.1007/978-3-540-69839-5_68
Publisher Name: Springer, Berlin, Heidelberg
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