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A Survey of Wi-Fi 6: Technologies, Advances, and Challenges

Author

Listed:
  • Erfan Mozaffariahrar

    (Chair of Communication Networks, University of Tuebingen, 72074 Tuebingen, Germany)

  • Fabrice Theoleyre

    (ICube Laboratory, CNRS/University of Strasbourg, Pole API, 67081 Strasbourg, France)

  • Michael Menth

    (Chair of Communication Networks, University of Tuebingen, 72074 Tuebingen, Germany)

Abstract

Wi-Fi is a popular wireless technology and is continuously extended to keep pace with requirements such as high throughput, real-time communication, dense networks, or resource and energy efficiency. The IEEE 802.11ax standard, also known as Wi-Fi 6, promises to provide data rates of up to almost 10 Gb/s, lower energy consumption, and higher reliability. Its capabilities go far beyond Wi-Fi 5 (802.11ac) and novel technical concepts have been introduced for this purpose. As such, the Wi-Fi 6 standard includes Multi-User Orthogonal Frequency Division Multiple Access (MU OFDMA), Multi-User Multiple-Input Multiple-Output (MU MIMO), new mechanisms for Spatial Reuse (SR), new mechanisms for power saving, higher-order modulation, and additional minor improvements. In this paper, we provide a survey of Wi-Fi 6. Initially, we provide a compact technological summary of Wi-Fi 5 and its predecessors. Then, we discuss the potential application domains of Wi-Fi 6, which are enabled through its novel features. Subsequently, we explain these features and review the related works in these areas. Finally, performance evaluation tools for Wi-Fi 6 and future roadmaps are discussed.

Suggested Citation

  • Erfan Mozaffariahrar & Fabrice Theoleyre & Michael Menth, 2022. "A Survey of Wi-Fi 6: Technologies, Advances, and Challenges," Future Internet, MDPI, vol. 14(10), pages 1-52, October.
    • Handle: RePEc:gam:jftint:v:14:y:2022:i:10:p:293-:d:942353
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    References listed on IDEAS

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    1. Yoohwa Kang & Sunwoo Lee & Songi Gwak & Taekyeong Kim & Donghyeok An, 2021. "Time-Sensitive Networking Technologies for Industrial Automation in Wireless Communication Systems," Energies, MDPI, vol. 14(15), pages 1-15, July.
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