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Title	Dynamic Vehicle Reputation Consensus: Enhancing Iov Communication With A Blockchain Algorithm
ID_Doc	21444
Authors	Zhang L.; Hang L.; Zu K.; Wang Y.; Yang K.
Year	2025
Published	IEEE Transactions on Vehicular Technology, 74, 3
DOI	http://dx.doi.org/10.1109/TVT.2024.3489629
Abstract	As smart cities rapidly evolve, the Vehicle-to-Everything (V2X) network faces significant challenges in data security and communication efficiency. This paper introduces an innovative algorithm based on a reputation mechanism, named the Dynamic Vehicle Reputation Consensus (DVRC), which focuses on improving the data security and communication efficiency of vehicular networks using blockchain technology. The DVRC algorithm comprehensively assesses vehicle behaviors and the consensus contribution within the blockchain network, utilizing a reputation scoring system to evaluate the reliability within the network. Furthermore, this study delves into multimodal communication strategies in vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) scenarios. Notably, when vehicles leave the range of basic infrastructure, those with high reputation scores (as determined by the DVRC's reputation values) relay the communication service. Additionally, the introduction of a reputation incentive mechanism and dynamic consensus threshold adjustments aim to improve consensus efficiency and encourage honest behavior. Experimental results demonstrate that the DVRC algorithm significantly improves communication efficiency in blockchain-based vehicular networks, such as increased throughput, reduced latency, and improved network scalability. These advances have substantial theoretical and practical significance for the development of vehicular networks in smart cities. © 1967-2012 IEEE.
Author Keywords	Blockchain; communication strategy; consensus algorithm; reputation mechanism; vehicle-to-everything (V2X) networking

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