Efficient and Trusted Data Sharing in a Sharding-Enabled Vehicular Blockchain

Zhang, X; Xia, W; Cui, Q; Tao, X; Liu, RP

Efficient and Trusted Data Sharing in a Sharding-Enabled Vehicular Blockchain

Zhang, X Xia, W Cui, Q Tao, X Liu, RP

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Network, 2023, 37, (2), pp. 230-237
Issue Date:: 2023-03-01

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Field	Value	Language
dc.contributor.author	Zhang, X
dc.contributor.author	Xia, W
dc.contributor.author	Cui, Q
dc.contributor.author	Tao, X
dc.contributor.author	Liu, RP
dc.date.accessioned	2024-04-19T04:18:21Z
dc.date.available	2024-04-19T04:18:21Z
dc.date.issued	2023-03-01
dc.identifier.citation	IEEE Network, 2023, 37, (2), pp. 230-237
dc.identifier.issn	0890-8044
dc.identifier.issn	1558-156X
dc.identifier.uri	http://hdl.handle.net/10453/178077
dc.description.abstract	Data sharing is essential for future autonomous vehicles in vehicular networks Building trust in the shared data can be challenging among mutually unknown vehicles in an open and distributed environment Blockchain is the key to establish trusted data sharing in a decentralized vehicular environment However the low efficiency e g transaction per second TPS of blockchain is the bottleneck for the efficient data sharing Moreover the highly dynamic topology the imperfect wireless links and the limited radio coverage may further slow down the blockchain consensus process To improve the efficiency and trustworthiness of data sharing in a vehicular network we propose a sharding enabled vehicular blockchain system Specifically the blockchain enabled vehicles are dynamically allocated to different shards based on their geographical locations so that transactions are processed in parallel We design an efficient and trusted sharding enabled blockchain consensus mechanism by integrating a reputation assisted intra shard consensus and a vehicle assisted inter shard consensus The reputation assistance in intra shard consensus is designed to defend against the collusive false block attack that may happen in a small scale shard environment The vehicle assisted inter shard consensus is designed to tackle the issues caused by defective roadside units RSUs Simulation results demonstrate the improved performance on efficiency and trustwor thiness of the proposed system In addition trusted data sharing can be established even under the conditions of malicious vehicles or attacked RSUs
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Network
dc.relation.isbasedon	10.1109/mnet.122.2100755
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0805 Distributed Computing, 0906 Electrical and Electronic Engineering
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.subject.classification	4606 Distributed computing and systems software
dc.title	Efficient and Trusted Data Sharing in a Sharding-Enabled Vehicular Blockchain
dc.type	Journal Article
utslib.citation.volume	37
utslib.for	0805 Distributed Computing
utslib.for	0906 Electrical and Electronic Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CCSP - Centre for Cyber Security and Privacy
utslib.copyright.status	closed_access	*
pubs.consider-herdc	true
dc.date.updated	2024-04-19T04:18:19Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	37
utslib.citation.issue	2

Abstract:

Data sharing is essential for future autonomous vehicles in vehicular networks Building trust in the shared data can be challenging among mutually unknown vehicles in an open and distributed environment Blockchain is the key to establish trusted data sharing in a decentralized vehicular environment However the low efficiency e g transaction per second TPS of blockchain is the bottleneck for the efficient data sharing Moreover the highly dynamic topology the imperfect wireless links and the limited radio coverage may further slow down the blockchain consensus process To improve the efficiency and trustworthiness of data sharing in a vehicular network we propose a sharding enabled vehicular blockchain system Specifically the blockchain enabled vehicles are dynamically allocated to different shards based on their geographical locations so that transactions are processed in parallel We design an efficient and trusted sharding enabled blockchain consensus mechanism by integrating a reputation assisted intra shard consensus and a vehicle assisted inter shard consensus The reputation assistance in intra shard consensus is designed to defend against the collusive false block attack that may happen in a small scale shard environment The vehicle assisted inter shard consensus is designed to tackle the issues caused by defective roadside units RSUs Simulation results demonstrate the improved performance on efficiency and trustwor thiness of the proposed system In addition trusted data sharing can be established even under the conditions of malicious vehicles or attacked RSUs

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/178077