Cited by 4,985Advanced Wireless Communication TechnologiesSoftware-Defined Networks and 5GMillimeter-Wave Propagation and Modeling

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A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems

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Saad, Walid, Bennis, Mehdi, Chen, Mingzhe·2020·IEEE Network

DOI 10.1109/mnet.001.1900287

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Abstract

The ongoing deployment of 5G cellular systems is continuously exposing the inherent limitations of this system, compared to its original premise as an enabler for Internet of Everything applications. These 5G drawbacks are spurring worldwide activities focused on defining the next-generation 6G wireless system that can truly integrate far-reaching applications ranging from autonomous systems to extended reality. Despite recent 6G initiatives (one example is the 6Genesis project in Finland), the fundamental architectural and performance components of 6G remain largely undefined. In this article, we present a holistic, forward-looking vision that defines the tenets of a 6G system. We opine that 6G will not be a mere exploration of more spectrum at high-frequency bands, but it will rather be a convergence of upcoming technological trends driven by exciting, underlying services. In this regard, we first identify the primary drivers of 6G systems, in terms of applications and accompanying technological trends. Then, we propose a new set of service classes and expose their target 6G performance requirements. We then identify the enabling technologies for the introduced 6G services and outline a comprehensive research agenda that leverages those technologies. We conclude by providing concrete recommendations for the roadmap toward 6G. Ultimately, the intent of this article is to serve as a basis for stimulating more out-of-the-box research around 6G.

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Self-citation
What Role Do Intelligent Reflecting Surfaces Play in Multi-Antenna Non-Orthogonal Multiple Access?
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Self-citation

Authors: Saad, W., Bennis, M., & Chen, M.
Affiliations: Virginia Tech (US)
University of Oulu (FI)
Princeton University (US)
ORCID: Saad, Walid
Bennis, Mehdi
Chen, Mingzhe
Venue: IEEE Network
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Published: 2020-05
Volume: 34
Issue: 3
Pages: 134-142
ISSN: 0890-8044 (ISSN-L)
1558-156X
DOI: 10.1109/mnet.001.1900287
OpenAlex: W2981096252
Cited by: 4,985
References: 15
Citations by year: 2026: 676 · 2025: 830 · 2024: 827 · 2023: 826 · 2022: 723 · 2021: 709 · 2020: 324
FWCI: 163.74
Type: journal article
Language: en
Open access: green
arxiv.org
Licence: ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html (vor)
doi.org/10.15223/policy-029 (stm-asf)
doi.org/10.15223/policy-037 (stm-asf)
Locations: IEEE Network (publishedVersion)
arXiv (Cornell University) (submittedVersion)
arXiv (Cornell University)
Funders: National Science Foundation (1836802)
European Commission (101017109)
Ministerio de Economía y Competitividad
Topics: Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Wireless Communication Technologies
Physical Sciences › Computer Science › Computer Networks and Communications › Software-Defined Networks and 5G
Physical Sciences › Engineering › Electrical and Electronic Engineering › Millimeter-Wave Propagation and Modeling
Keywords: 6G, 5G limitations, Internet of Everything, service classes, performance requirements, enabling technologies, autonomous systems, extended reality, high-frequency spectrum

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A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems

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