Survey on Digital Twin Edge Networks (DITEN) Toward 6G

Tang, Fengxiao; Chen, Xuehan; Rodrigues, Tiago Koketsu; Zhao, Ming; Kato, Nei

doi:10.1109/ojcoms.2022.3197811

Cited by 66 publications

(23 citation statements)

References 135 publications

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“…Wen et al [18] review existing approaches in realizing digital twins for efficient system and dynamics modeling of the complex networked systems. Tang et al [19] discuss the supporting technologies and key issues in the deployment and update of cyber twins under edge environments. Alcaraz et al [20] investigate four functional layers for digital twin from the data perspective and discuss the security and privacy issues of digital twins in data acquisition, data synchronization, data modeling, and data visualization.…”

Section: B Comparison With Existing Survey Work and Contributions Of ...mentioning

confidence: 99%

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

Wang

Zhou

Guo

et al. 2023

IEEE Internet Things J.

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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.

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Section: B Comparison With Existing Survey Work and Contributions Of ...mentioning

confidence: 99%

“…2022 [19] Discussions on supporting technologies and key issues in deploying and updating digital twins in edge.…”

Section: [1]mentioning

confidence: 99%

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

Wang

Zhou

Guo

et al. 2023

IEEE Internet Things J.

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“…Nevertheless, some of the survey papers briefly highlighted wireless communication technologies as the key enabling technologies for the realization of the DTs in various sectors [13], [15], [21], [23]. Articles [24], [29], [30] do consider the impact of DT technology for the applications in the 6G communications era. However, to the best of our knowledge, no survey paper considers elaborately the application of DT technology in the research and development of 6G communication systems.…”

Section: A Review Of Related Workmentioning

confidence: 99%

Empowering 6G Communication Systems With Digital Twin Technology: A Comprehensive Survey

et al. 2022

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The global roll-out phase of the fifth-generation of mobile communication systems is currently underway. The industry and academia have already begun research on potential sixth-generation (6G) communication systems. The 6G communication system is anticipated to provide network connectivity for an extensive range of use cases in a variety of emerging vertical industries. Consequently, a new set of challenging requirements and more stringent key performance indicators have to be considered, a novel architecture has to be designed, and unique enabling technologies shall be developed in order to fulfill the technical, regulatory, and business demands of the communication service customers. These requirements place enormous pressure on the players in the telecommunications industry, including network operators, service providers, hardware suppliers, standards development organizations (SDOs), and regulatory authorities aimed at developing, standardizing, and regulating an energy-efficient, cost-effective, performing, and sustainable 6G communication ecosystem. One area of focus for 6G communication systems is the digital twin (DT) technology, which is a well-defined set of tools designed to create virtual representations of physical objects that serve as their digital counterparts. This article explores the applicability of the DT technology in the context of 6G communication systems by viewing it as a promising tool to make research, development, operation, and optimization of the next-generation communication systems highly efficient. The major contribution of this article is fivefold. Firstly, we provide critical analysis of the state-of-the-art literature in the field of DT technology in order to capture its essence in several application areas since its inception. Secondly, we conduct a comprehensive survey of the research concerning the deployment of DT technology in 6G communication systems. Thirdly, we discuss potential use cases and key areas of applications (along with detailed examples) of 6G communication systems that can benefit from DT technology. Fourthly, we present an overview of the activities of several SDOs that are active in the field of DT technology. Finally, we identify several open research challenges and future directions that need to be addressed before the end-to-end deployment of DT technology in 6G communication systems.

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“…Particularly, the authors have focused on three main concepts, 5G automotive, 5G radio and channel emulation, and 5G optimization and validation, and how edge intelligence can support such concepts. In [4], Tang et al articulated the basic concepts of DT and MEC, and provided a general overview on the communication and computation advantages reaped from DT edge network. They further investigated the technical deployments of DT at the cloud and at the edge.…”

Section: A Related Workmentioning

confidence: 99%

Digital Twin-Empowered Smart Cities: A New Frontier of Wireless Networks

Bariah¹,

Sari²,

Debbah³

2022

Preprint

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<p>The future of wireless network generations is revolving toward unlocking the opportunities offered by virtualization and digitization services in smart city applications, with the aim to realize improved quality-of-experience (QoE) and bring several advantages to modern cities. According to the rapid development in the field of network virtualization, we envision that future smart cities will run over ubiquitous deployment of virtualized components that are controlled by artificial intelligence (AI), i.e., the conceptualization of the Digital Twin (DT) paradigm. The key principle of the DT relies on creating a holistic representation of wireless network elements, in addition to decoupling the information pertaining to physical objects and dynamics, into a cyber twin. The cyber twin will then leverage this information for AI models training, and then reasoning and decision making operations, which will be then reflected to the physical environment, for improved sustainability. Motivated by this, in this article, we put a forward-looking vision to the integration of DT in smart city applications, and the intertwined role of wireless technologies as being enablers and enabled by the DT. Moreover, we sketch the roadmap toward identifying the limitations of the DT in 6G-enabled smart cities, and open new horizons for further developments in different design aspects. </p>

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Survey on Digital Twin Edge Networks (DITEN) Toward 6G

Cited by 66 publications

References 135 publications

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

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

Empowering 6G Communication Systems With Digital Twin Technology: A Comprehensive Survey

Digital Twin-Empowered Smart Cities: A New Frontier of Wireless Networks

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