Cooperative awareness using roadside unit networks in mixed traffic

Manabu Tsukada (1) , Masahiro Kitazawa (2) , Takaharu Oi (3) , Hideya Ochiai (2) , Hiroshi Esaki (2)

1 Department of Creative Informatics
2 UTokyo - The University of Tokyo
3 UTokyo - Graduate School of Information Science and Technology, the University of Tokyo

Vehicle-to-vehicle (V2V) messaging is an indispensable component of connected autonomous vehicle systems. Although V2V standards have been specified by the European Union, United States, and Japan, the deployment phase represents mixed traffic in which connected and legacy vehicles co-exist. To enhance cooperative awareness in this mixed traffic, we assessed the special roadside unit that we developed in our previous work that generates required V2V messages on behalf of sensed target vehicles. In this paper, we extend our earlier work to propose a system called Grid Proxy Cooperative Awareness Message to broaden the cooperative awareness message dissemination area by connecting infrastructure using high-speed roadside networks. To minimize delay in message delivery, we designed the proposed system to use edge computing. The proposed scheme delivers cooperative messages to a wider area with a low delay and a high packet delivery ratio by prioritizing packets by their respective safety contributions. Our simulation results indicate that the proposed scheme efficiently delivers messages in heavy road traffic conditions modeled on real maps of Tokyo and Paris.

Mots clés: vehicular networking; cooperative ITS; standards; cooperative awareness message; vehicle-to-vehicle

Domaines: Robotique [cs.RO]; Réseaux et télécommunications [cs.NI]; Informatique mobile

Manabu Tsukada, Masahiro Kitazawa, Takaharu Oi, Hideya Ochiai, Hiroshi Esaki. Cooperative awareness using roadside unit networks in mixed traffic. IEEE Vehicular Networking Conference (VNC), Dec 2019, University of California - Los Angeles (UCLA), United States. ⟨hal-02335068⟩