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Engineering >> 2022, Volume 8, Issue 1 doi: 10.1016/j.eng.2021.10.002

Blockchain for Transparent Data Management Toward 6G

a Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
b Huawei Technologies Canada, Ottawa, ON K2K 3J1, Canada

Received: 2020-12-20 Revised: 2020-07-06 Accepted: 2020-07-18 Available online: 2021-10-06

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Abstract

The wealth of user data acts as a fuel for network intelligence toward the sixth generation wireless networks (6G). Due to data heterogeneity and dynamics, decentralized data management (DM) is desirable for achieving transparent data operations across network domains, and blockchain can be a promising solution. However, the increasing data volume and stringent data privacy-preservation requirements in 6G bring significantly technical challenge to balance transparency, efficiency, and privacy requirements in decentralized blockchain-based DM. In this paper, we propose blockchain solutions to address the challenge. First, we explore the consensus protocols and scalability mechanisms in blockchains and discuss the roles of DM stakeholders in blockchain architectures. Second, we investigate the authentication and authorization requirements for DM stakeholders. Third, we categorize DM privacy requirements and study blockchain-based mechanisms for collaborative data processing. Subsequently, we present research issues and potential solutions for blockchain-based DM toward 6G from these three perspectives. Finally, we conclude this paper and discuss future research directions.

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