This paper presents V-Guard, a new permissioned blockchain that achieves consensus for vehicular data under changing memberships, targeting the problem in V2X networks where vehicles are often intermittently connected on the roads. To achieve this goal, V-Guard integrates membership management into the consensus process for agreeing on data entries. It binds a data entry with a membership configuration profile that describes responsible vehicles for achieving consensus for the data entry. As such, V-Guard produces chained consensus results of both data entries and their residing membership profiles, which enables consensus to be achieved seamlessly under changing memberships. In addition, V-Guard separates the ordering of transactions from consensus, allowing concurrent ordering instances and periodic consensus instances to order and commit data entries. These features make V-Guard efficient for achieving consensus under dynamic memberships with high throughput and latency performance.
翻译:本文提出 V-Guard,一种新的权限区块链,可实现车辆数据的共识,处理在 V2X 网络中车辆在道路上时常断断续续的问题。为了实现这一目标,V-Guard将成员管理整合到共识过程中,以便就数据条目达成共识的责任车辆。它将包含了配置文件的数据条目与成员资格配置文件绑定在一起。因此,V-Guard 产生了数据条目和其居住成员资格配置文件的链接共识结果,从而在成员资格动态改变时无缝地实现共识。此外,V-Guard将事务排序与共识分离,允许并发排序实例和周期性共识实例进行数据条目的订购和提交。这些特性使 V-Guard 可以在高吞吐量和低延迟性能下实现动态成员共识。