Generation | IEEE standard |
Adopted | Maximum link rate (Mb/s) |
Radio frequency (GHz) |
---|---|---|---|---|
Wi-Fi 8 | 802.11bn | expected 2028[1] | 100 000[2] | 2.4, 5, 6[3] |
Wi-Fi 7 | 802.11be | expected 2024 | 0.4–23 059 | 2.4, 5, 6[4] |
Wi-Fi 6E | 802.11ax | 2021 | 0.4–9608[5] | 2.4, 5, 6[a] |
Wi-Fi 6 | 2.4, 5 | |||
Wi-Fi 5 | 802.11ac | 2013 | 6.5–6933 | 5[b] |
Wi-Fi 4 | 802.11n | 2009 | 6.5–600 | 2.4, 5 |
(Wi-Fi 3*) | 802.11g | 2003 | 6–54 | 2.4 |
(Wi-Fi 2*) | 802.11a | 1999 | 5 | |
(Wi-Fi 1*) | 802.11b | 1999 | 1–11 | 2.4 |
(Wi-Fi 0*) | 802.11 | 1997 | 1–2 | 2.4 |
*Wi‑Fi 0, 1, 2, and 3 are named by retroactive inference. They do not exist in the official nomenclature.[6][7][8] |
IEEE 802.11bn, dubbed Ultra High Reliability (UHR), is to be the next IEEE 802.11 standard.[9] It is also designated Wi-Fi 8. As its name suggests, 802.11bn aims to improve the reliability of Wi-Fi.[10]
802.11bn will require more advanced antennas for channels above 6 GHz which are used in 802.11be and lower. 42.5 GHz and 71 GHz require line of sight and cannot penetrate walls. Outdoors, 802.11bn will be attenuated by rain, as is experienced by satellite communications.
The goal of 802.11bn is to reach 100 Gbps speeds. This is faster than copper Ethernet which tops out at 40 Gbps. This will require retrofitting ceiling-mounted access points with single-mode optical fiber.
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