A reliable and secure approach for efficient Car-to-Car communication in intelligent transportation systems

Intelligent Transportation System (ITS) is considered to be an integral part of the Smart City concept. As per the idea of ITS, intelligence incorporated in existing vehicles, both private and public, is expected to make vehicle management inexpensive and less complex. Some of the barriers in successful deployment of ITS have been its reliability, scalability, interoperability and security. Communication plays a big role in ITS and Wi-Fi/ cellular technologies have been used to facilitate Car-to-Server (C2S) and Server-to-Server (S2S) type communication. Car-to-Car (C2C) communication emerges as a more resource constrained and challenging model. Due to strict real-time, low delay and high security requirements, C2C presents several avenues for research. In this work, we investigate the network and security concerns of C2C architecture of ITS. Based on our study, we propose an effective approach for C2C communication using event-triggered broadcast of information. We use Public Key Infrastructure (PKI) based sender authentication for information verification. Furthermore, we provide Machine Learning based solutions to some common problems encountered during C2C communication.