LVBS: Lightweight Vehicular Blockchain for Secure Data Sharing in Disaster Rescue

【Author】 Su, Zhou; Wang, Yuntao; Xu, Qichao; Zhang, Ning

【Source】IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING

【Abstract】In disaster areas, a large amount of data (e.g., rescue commands, road damage, and rescue experience) should be delivered among ground rescuing vehicles for safe driving and efficient rescue. When communication infrastructures are destroyed by disasters, unmanned aerial vehicles (UAVs) can be employed to perform immediate rescue missions in destroyed areas and assist data sharing for ground Internet of vehicles (IoV). However, in such UAV-assisted IoV under disaster situation, there exist potential security threats on data sharing among vehicles and UAVs because of the untrusted network environment, unreliable misbehavior tracing, and low-quality shared data. To address these issues, in this article, we develop a lightweight vehicular blockchain-enabled secure (LVBS) data sharing framework in UAV-aided IoV for disaster rescue. First, we propose a novel UAV and blockchain-assisted collaborative aerial-ground network architecture in disaster areas. Second, we develop a credit-based consensus algorithm in the lightweight vehicular blockchain to securely and immutably trace misbehaviors and record data transactions for UAVs and vehicles with improved efficiency and security in reaching consensus. Third, since UAVs and vehicles have little explicit knowledge of the whole network, we develop reinforcement learning-based algorithms to optimally schedule the pricing and quality of data sharing strategies for both data contributor and data consumer via trial and error. Finally, extensive simulations are conducted, which demonstrate that LVBS can effectively improve the security of consensus phase and promote high-quality data sharing.

【Keywords】Land vehicles; Roads; Voting; Security; Consensus protocol; Complexity theory; Unmanned aerial vehicle (UAV); blockchain; reinforcement learning; data sharing; disaster rescue

【标题】LVBS：用于灾难救援中安全数据共享的轻量级车载区块链

【摘要】在灾区，需要在地面救援车辆之间传递大量数据（如救援指挥、道路损坏、救援经验等），以实现安全驾驶和高效救援。当通信基础设施被灾害破坏时，可以使用无人机（UAV）在受灾地区执行即时救援任务，并协助地面车联网（IoV）的数据共享。然而，在这种灾害情况下的无人机辅助车联网中，由于不可信的网络环境、不可靠的不当行为追踪和低质量的共享数据，车辆和无人机之间的数据共享存在潜在的安全威胁。为了解决这些问题，在本文中，我们在无人机辅助 IoV 中开发了一种轻型车载区块链安全 (LVBS) 数据共享框架，用于灾难救援。首先，我们提出了一种新型无人机和区块链辅助的灾区协同空地网络架构。其次，我们在轻量级车辆区块链中开发了一种基于信用的共识算法，以安全且不可变地跟踪无人机和车辆的不当行为并记录数据交易，从而提高达成共识的效率和安全性。第三，由于无人机和车辆对整个网络知之甚少，我们开发了基于强化学习的算法，通过反复试验为数据贡献者和数据消费者优化定价和数据共享策略的质量。最后，通过大量仿真，证明了LVBS可以有效提高共识阶段的安全性，促进高质量的数据共享。

【关键词】陆地车辆；道路；表决;安全;共识协议；复杂性理论；无人驾驶飞行器（UAV）；区块链；强化学习；数据共享；灾害救援

【发表时间】2022

【收录时间】2022-08-23

【文献类型】Article

【论文大主题】共识机制

【论文小主题】新共识机制提出

【影响因子】6.791

【翻译者】石东瑛