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Title	Digital Twin Networks: A Survey
ID_Doc	20218
Authors	Wu Y.; Zhang K.; Zhang Y.
Year	2021
Published	IEEE Internet of Things Journal, 8, 18
DOI	http://dx.doi.org/10.1109/JIOT.2021.3079510
Abstract	Digital twin network (DTN) is an emerging network that utilizes digital twin (DT) technology to create the virtual twins of physical objects. DTN realizes co-evolution between physical and virtual spaces through DT modeling, communication, computing, data processing technologies. In this article, we present a comprehensive survey of DTN to explore the potentiality of DT. First, we elaborate key features and definitions of DTN. Next, the key technologies and the technical challenges in DTN are discussed. Furthermore, we depict the typical application scenarios, such as manufacturing, aviation, healthcare, 6G networks, intelligent transportation systems, and urban intelligence in smart cities. Finally, the new trends and open research issues related to DTN are pointed out. © 2014 IEEE.
Author Keywords	Digital twin (DT); digital twin network (DTN); DT modeling

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