区块链在车载自组网中的应用研究及展望  

Survey on Application of Blockchain in VANET

作　　者：周畅 陆慧梅[1] 向勇[2] 吴竞邦 ZHOU Chang;LU Hui-mei;XIANG Yong;WU Jing-bang(School of Computer Science&Technology,Beijing Institute of Technology,Beijing 100081,China;Department of Computer Science and Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京理工大学计算机学院,北京100081 [2]清华大学计算机科学与技术系,北京100084

出　　处：《计算机科学》2020年第2期213-220,共8页Computer Science

摘　　要：车载自组织网络(简称车载网)是一种由车辆节点和路侧节点(基础设施)构成的自组织网络,是智能交通(Intelligent Transport System,ITS)领域的核心技术之一。区块链的分布式数据存储、点对点传输、共识机制、加密算法等技术可保证车载网中的安全性、可靠性,但是区块链的强一致性和链式结构特点无法满足车载网的两个主要特性,即车辆节点快速移动性和网络不稳定性。文中重点研究区块链在车辆节点移动性和网络不稳定性条件下的节点、存储、跨链、共识等技术特性,分析存在的问题并提出解决方法,最后展望区块链在车载网中的新应用及研究方向,为今后的研究提供参考。The Vehicular Ad Hoc Network(VANET)is a kind of mobile ad hoc network(MANET)that supports vehicle to vehicle(V2V)and vehicle to infrastructure(V2I)communications,which is one of the core technology in Intelligent Transport System(ITS).Distributed data storage,point-to-point transmission,consensus mechanism and encryption algorithm of blockchain can warrant the security and reliability of VANET.However,the strong consistency and chain structure of blockchain can not match the two main characteristics of VANET,i.e.the rapid mobility of vehicle nodes and network instability.This research focus on the technical aspects of blockchain such as node,storage,cross-chain and consensus under the conditions of high mobility of vehicle nodes and volatility of network,and analyzes the existing problems and proposes solutions.We also prospect the future applications and research of blockchain in VANET which can be provided as a reference and basis.

关 键 词：区块链 车载网 移动性 不稳定性 跨链 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]