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LinkNYC is an infrastructure project providing free Wi-Fi service in New York City. The office of New York City Mayor Bill de Blasio announced the plan on November 17, 2014, and the installation of the first kiosks, or "Links," started in late 2015. The Links replace the city's network of 9,000 to 13,000 payphones, a contract for which expired ...
Wi-Fi 6, or IEEE 802.11ax, is an IEEE standard from the Wi-Fi Alliance, for wireless networks (WLANs). It operates in the 2.4 GHz and 5 GHz bands, [9] with an extended version, Wi-Fi 6E, that adds the 6 GHz band. [10] It is an upgrade from Wi-Fi 5 (802.11ac), with improvements for better performance in crowded places.
The 802.11ac standard was retroactively labelled as Wi-Fi 5 by the Wi-Fi Alliance. [ 45 ] [ 46 ] Changes compared to 802.11n include wider channels (80 or 160 MHz versus 40 MHz) in the 5 GHz band, more spatial streams (up to eight versus four), higher-order modulation (up to 256- QAM vs. 64-QAM), and the addition of Multi-user MIMO (MU-MIMO).
September 13, 2024 at 3:39 PM. United said the Wi-Fi will offer “gate-to-gate” connectivity. United Airlines said Friday that it plans to offer inflight Wi-Fi for free using Starlink from Elon ...
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.
802.11 frame types. In the IEEE 802.11 wireless LAN protocols (such as Wi-Fi), a MAC frame is constructed of common fields (which are present in all types of frames) and specific fields (present in certain cases, depending on the type and subtype specified in the first octet of the frame). The very first two octets transmitted by a station are ...
802.11ay is a type of WLAN in the IEEE 802.11 family of Wi-Fi WLANs. It's 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]
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.