A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects

doi:10.1109/JIOT.2023.3263909

Residential College	false
Status	已發表Published
	A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects
	Wang，Yuntao 1; Su，Zhou 1; Guo，Shaolong 1; Dai，Minghui 2; Luan，Tom H.1; Liu，Yiliang 1
	2023
Source Publication	IEEE Internet of Things Journal
Abstract	By interacting, synchronizing, and cooperating with its physical counterpart in real time, digital twin is promised to promote an intelligent, predictive, and optimized modern city. Via interconnecting massive physical entities and their virtual twins with inter-twin and intra-twin communications, the Internet of digital twins (IoDT) enables free data exchange, dynamic mission cooperation, and efficient information aggregation for composite insights across vast physical/virtual entities. However, as IoDT incorporates various cutting-edge technologies to spawn the new ecology, severe known/unknown security flaws and privacy invasions of IoDT hinders its wide deployment. Besides, the intrinsic characteristics of IoDT such as decentralized structure, information-centric routing and semantic communications entail critical challenges for security service provisioning in IoDT. To this end, this paper presents an in-depth review of the IoDT with respect to system architecture, enabling technologies, and security/privacy issues. Specifically, we first explore a novel distributed IoDT architecture with cyber-physical interactions and discuss its key characteristics and communication modes. Afterward, we investigate the taxonomy of security and privacy threats in IoDT, discuss the key research challenges, and review the state-of-the-art defense approaches. Finally, we point out the new trends and open research directions related to IoDT.
Keyword	artificial intelligence blockchain Digital twins Internet Internet of digital twins Internet of Things privacy Privacy security Security semantic communication Semantics Synchronization
DOI	10.1109/JIOT.2023.3263909
URL	View the original
Language	英語English
Scopus ID	2-s2.0-85153393414
Fulltext Access	View Full-Text via DOI View Full-Text via Scopus
Citation statistics
Document Type	Journal article
Collection	University of Macau
Affiliation	1.School of Cyber Science and Engineering, Xi’an Jiaotong University, Xi’an, China 2.State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China
Recommended Citation GB/T 7714	Wang，Yuntao,Su，Zhou,Guo，Shaolong,et al. A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects[J]. IEEE Internet of Things Journal, 2023.
APA	Wang，Yuntao., Su，Zhou., Guo，Shaolong., Dai，Minghui., Luan，Tom H.., & Liu，Yiliang (2023). A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects. IEEE Internet of Things Journal.
MLA	Wang，Yuntao,et al."A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects".IEEE Internet of Things Journal (2023).

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