Towards Robust Communication in ITS: A Comprehensive Study of Blockchain for V2I

V2X in connected autonomous vehicles (CAV) plays an important role in information sharing through communication. The integration of V2X and blockchain has the potential to create functionalities such as seamless V2X information sharing, similar to Bitcoin, and post-accident investigation utilities that leverage data immutability. However, the integration of blockchain into V2X communication requires addressing CAV mobility. In this study, we propose a framework that takes into account the high mobility of CAVs. Furthermore, we propose a method that not only addresses this challenge but also achieves load balancing by facilitating cooperation among nodes responsible for member management. In this paper, we integrate the ITS simulator, the communication simulator, and the blockchain simulator to build an infrastructure that can be evaluated end-to-end. Using the integrated simulator, we perform an evaluation based on metrics such as latency and member change rate in a mobile environment with a single roadside unit (RSU). In the future, we plan to implement the proposed methodology and perform evaluations in environments with multiple RSUs.