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Title	A Hierarchical Blockchain Architecture For Secure Data Sharing For Vehicular Networks
ID_Doc	2049
Authors	C K.S.; Divakarala U.; Chandrasekaran K.; Reddy K.H.K.
Year	2023
Published	International Journal of Information Technology (Singapore), 15, 3
DOI	http://dx.doi.org/10.1007/s41870-023-01175-0
Abstract	Data sharing is common phenomenon between the stakeholders within an organization and it is vital to sustain in the context of application. Internet of Things (IoT) is an umbrella of all applications’ online services like smart city, smart agriculture, smart grid and smart vehicles. In case of autonomous vehicular network (AVN), the data generated by vehicles, sensing units and road side units (RSU) is sensitive in nature so, secure data sharing (SDS) in AVN is the prime importance. In the area of SDS, Blockchain is gaining popularity which is an immutable distributed ledger technology and emerged as one of the prime solutions towards secure data sharing. As an innovative contribution, we proposedBlockchain based hierarchical secure data sharing model for sharing within vehicular network (VN). The proposed architecture is able to share road traffic related information e.g., road conditions, traffic congestion with the nearby vehicles and other stakeholders in the vehicular network. The performance of the proposed model is analyzed by using a simulation study and the efficacy of the simulated results outperforms than that of existing models. © 2023, The Author(s), under exclusive licence to Bharati Vidyapeeth's Institute of Computer Applications and Management.
Author Keywords	Hierarchical blockchain; Internet of things; Secure datasharing; Vehicular networks

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