Abstract

<p>Fifth generation (5G) mobile communication systems have entered the stage of commercial deployment, providing users with new services, improved user experiences as well as a host of novel opportunities to various industries. However, 5G still faces many challenges. To address these challenges, international industrial, academic, and standards organizations have commenced research on sixth generation (6G) wireless communication systems. A series of white papers and survey papers have been published, which aim to define 6G in terms of requirements, application scenarios, key technologies, etc. Although ITU-R has been working on the 6G vision and it is expected to reach a consensus on what 6G will be by mid-2023, the related global discussions are still wide open and the existing literature has identified numerous open issues. This paper first provides a comprehensive portrayal of the 6G vision, technical requirements, and application scenarios, covering the current common understanding of 6G. Then, a critical appraisal of the 6G network architecture and key technologies is presented. Furthermore, existing testbeds and advanced 6G verification platforms are detailed for the first time. In addition, future research directions and open challenges are identified to stimulate the on-going global debate. Finally, lessons learned to date concerning 6G networks are discussed.</p>

Keywords

Key (lock)Software deploymentComputer scienceTelecommunicationsWhite paperArchitectureVisionComputer securitySoftware engineering

Affiliated Institutions

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Publication Info

Year
2023
Type
article
Volume
25
Issue
2
Pages
905-974
Citations
1420
Access
Closed

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Social media, news, blog, policy document mentions

Citation Metrics

1420
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38
Influential
1441
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Cite This

Cheng‐Xiang Wang, Xiaohu You, Xiqi Gao et al. (2023). On the Road to 6G: Visions, Requirements, Key Technologies, and Testbeds. IEEE Communications Surveys & Tutorials , 25 (2) , 905-974. https://doi.org/10.1109/comst.2023.3249835

Identifiers

DOI
10.1109/comst.2023.3249835
arXiv
2302.14536

Data Quality

Data completeness: 88%