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Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
Wi-Fi 6E introduces operation at frequencies of or near 6 GHz, and superwide channels that are 160 MHz wide, [17] the frequency ranges these channels can occupy and the number of these channels depends on the country the Wi-Fi 6 network operates in. [18] To meet the goal of supporting dense 802.11 deployments, the following features have been ...
Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s [2] Flash-OFDM: Flash-OFDM: Mobile Internet mobility up to 200 mph (350 km/h) Flash-OFDM: 5.3 10.6 15.9: 1.8 3.6 5.4: Mobile range 30 km (18 miles) Extended range 55 km (34 miles) HIPERMAN: HIPERMAN: Mobile Internet: OFDM: 56.9: Wi-Fi: 802.11 ...
frequency (GHz) (Wi-Fi 0*) 802.11: 1997 1–2 2.4 (Wi-Fi 1*) 802.11b: 1999 1–11 2.4 (Wi-Fi 2*) 802.11a: 1999 6–54 5 (Wi-Fi 3*) 802.11g: 2003 2.4 Wi-Fi 4: 802.11n: 2009 6.5–600 2.4, 5 Wi-Fi 5: 802.11ac: 2013 6.5–6933 5 [a] Wi-Fi 6: 802.11ax: 2021 0.4–9608 [1] 2.4, 5 Wi-Fi 6E: 2.4, 5, 6 [b] Wi-Fi 7: 802.11be: 2024 [c] 0.4– 23,059: 2.4 ...
The reason given is: UNII-1 Power limit has been raised by FCC (USA). Channels 120-128 are now allowed using DFS (USA). UNII-4 now allowed (USA). 6GHz spectrum graph not present to reflect UNII 5/6/7/8 which is now active in WiFi 6E (USA).. Please help update this article to reflect recent events or newly available information. (May 2023
Wi-Fi (/ ˈ w aɪ f aɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
802.11ay is a type of WLAN in the IEEE 802.11 family of Wi-Fi WLANs. It is an improvement on IEEE 802.11ad rather than a new standard. [3] [4] It uses the 60 GHz band [5] and has a transmission rate of 20–40 Gbit/s and an extended transmission distance of 300–500 meters. It includes mechanisms for channel bonding and MU-MIMO technologies. [2]
IEEE 802.11n is an amendment to IEEE 802.11-2007 as amended by IEEE 802.11k-2008, IEEE 802.11r-2008, IEEE 802.11y-2008, and IEEE 802.11w-2009, and builds on previous 802.11 standards by adding a multiple-input multiple-output (MIMO) system and 40 MHz channels to the PHY (physical layer) and frame aggregation to the MAC layer.