Wireless Local Area Network (WLAN) develops from 802.11b from 1999 to today's 802.11be (Wi-Fi 7). This article introduces Wi-Fi 7's key technologies such as 320MHz channel bandwidth, 16*16 Multi-User Multiple-Input Multiple-Output (MU-MIMO), 4K Quadrature Amplitude Modulation (QAM), Multi-Link Operation (MLO), Multi Resource Unit (RU), Preamble Puncturing, and its advantages over Wi-Fi 6. Wi-Fi 7 will bring new experiences for various real-time services such as AR/VR, 8K videos, and Internet of Things (IoTs) for ultra-low latency and very high data throughput.

Shengzhong Zhang, Lei Yu, Yinqian Cheng. An Introduction to Key Technologies of Wi-Fi 7. International Journal of Frontiers in Engineering Technology (2024), Vol. 6, Issue 2: 1-5. https://doi.org/10.25236/IJFET.2024.060201.

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