We examine the performance of inter-vehicle communication (IVC) systems using the IEEE802.11b standard CSMA scheme and a proposed system in which packet transmission timing is decided by the vehicle position. For the realization of safety cruise-assist systems by IVC systems, the spread of transceivers on vehicles is important. To improve the equipped rate of transceivers on vehicles, it is necessary that the implementation of more simple and cheaper IVC systems. One of the solutions is using conventional wireless LAN systems for IVC systems. So we evaluate the performance of an IVC system using the conventional IEEE802.11b CSMA system. In addition, we propose and evaluate an improvement scheme for solving the performance degradation caused by packet collision. The results of simulation show that the proposed scheme is superior to other schemes when the bit rate is low. Also, it is shown that the proposed scheme has the same or higher performance than the other schemes in high bit rate.


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    Title :

    An advanced CSMA inter-vehicle communication system using packet transmission timing decided by the vehicle position


    Contributors:
    Nagaosa, T. (author) / Kobayashi, Y. (author) / Mori, K. (author) / Kobayashi, H. (author)


    Publication date :

    2004-01-01


    Size :

    361671 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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