Electric Vehicles (EVs) have become a promising solution to entirely replace traditional internal combustion engine vehicles. EV owners face the “Range Anxiety” problem which is the fear that their remaining charge would not be enough to reach their destination. Vehicle-to-Vehicle (V2V) charging is currently being used in exchanging energy between EVs. Most of the existing energy V2V frameworks depend on a centralized server that manages the energy exchange. However, these solutions may suffer from privacy leakage and misbehaving platforms. To overcome these limitations, the paper proposes a blockchain-based crowdsourcing framework for V2V charging. The framework features include registering users, maintaining user information, clustering requesters (charging tasks), collecting preferences lists from requesters and providers, and lastly selecting the requester-provider charging pair as well as the corresponding meeting point. These features are implemented using three types of smart contracts: Contract, Contract, and Contract while guaranteeing the transparency of the system and overcoming the main limitations of the centralized solutions. Experiment results with real-life dataset show that the proposed framework achieves a comparable performance at reasonable paid costs and execution times.

中文翻译：

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基于区块链的车对车充电众包框架

电动汽车（EV）已成为完全取代传统内燃机汽车的有前途的解决方案。电动汽车车主面临“里程焦虑”问题，即担心剩余电量不足以到达目的地。车对车（V2V）充电目前用于电动汽车之间的能量交换。大多数现有的能源 V2V 框架都依赖于管理能源交换的集中式服务器。然而，这些解决方案可能会遭受隐私泄露和平台行为不当的问题。为了克服这些限制，本文提出了一种基于区块链的 V2V 充电众包框架。该框架功能包括注册用户、维护用户信息、对请求者（计费任务）进行聚类、从请求者和提供者收集偏好列表，最后选择请求者-提供者计费对以及相应的交汇点。这些功能是使用三种类型的智能合约实现的：合约、合约、合约，同时保证系统的透明度并克服中心化解决方案的主要局限性。现实数据集的实验结果表明，所提出的框架以合理的支付成本和执行时间实现了可比较的性能。