A Technique for Information Sharing using Inter-Vehicle Communication with Message Ferrying

Authors:
Takashi Shinkawa;Takashi Terauchi;Tomoya Kitani;Naoki Shibata;Keiichi Yasumoto;Minoru Ito;Teruo Higashino
Affiliations:
Nara Institute of Science and Technology, Japan;Nara Institute of Science and Technology, Japan;Nara Institute of Science and Technology, Japan;Shiga University, Japan;Nara Institute of Science and Technology, Japan;Nara Institute of Science and Technology, Japan;Osaka University, Japan
Venue:
MDM '06 Proceedings of the 7th International Conference on Mobile Data Management
Year:
2006

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Abstract

In this paper, we propose a method to realize traffic information sharing among cars using inter-vehicle communication. When traffic information on a target area is retained by ordinary cars near the area, the information may be lost when the density of cars becomes low. In our method, we use the message ferrying technique together with the neighboring broadcast to mitigate this problem. We use buses which travel through regular routes as ferries. We let buses maintain the traffic information statistics in each area received from its neighboring cars. We implemented the proposed system, and conducted performance evaluation using traffic simulator NETSTREAM. As a result, we have confirmed that the proposed method can achieve better performance than using only neighboring broadcast.