Abstract Vehicular networks are evolving towards a new paradigm, the Internet of Vehicles (IoV). With IoV, vehicles should be able to communicate with their environment using heterogeneous access technologies. To make it reality, security, privacy, cooperation and trust establishment in vehicular networks should be considered. Blockchain, a popular distributed ledger technology, could be a way to overcome these challenges. That is why the integration of this technology within vehicular networks is currently under study. The aim of this survey is to provide directions for future work in the area of Blockchain-based vehicular networks. To do so, existing research works aiming to overcome vehicular challenges using the Blockchain technology are presented and compared. Moreover, different requirements related to the deployment of Blockchain-based applications in vehicular networks are identified and analysed. Finally, challenges related to the integration of the Blockchain technology within vehicular networks are discussed.

中文翻译：

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基于区块链的车联网应用调查

摘要 车载网络正在朝着一种新的范式发展，即车联网（IoV）。借助车联网，车辆应该能够使用异构访问技术与其环境进行通信。为了使其成为现实，应考虑车载网络中的安全性、隐私性、合作和信任建立。区块链是一种流行的分布式账本技术，可能是克服这些挑战的一种方式。这就是为什么目前正在研究将这项技术集成到车载网络中的原因。本次调查的目的是为基于区块链的车辆网络领域的未来工作提供方向。为此，介绍并比较了旨在克服使用区块链技术的车辆挑战的现有研究工作。而且，确定并分析了与在车载网络中部署基于区块链的应用程序相关的不同要求。最后，讨论了与区块链技术在车辆网络中集成相关的挑战。