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IEEE 802.11 standards and amendments

25 articles

Hybrid wireless mesh protocol

The Hybrid Wireless Mesh Protocol (HWMP) is the mandatory default routing protocol of the IEEE 802.11s Wi-Fi mesh standard, combining reactive on-demand and proactive tree-based path selection.

IEEE 802.11

IEEE 802.11 is the IEEE working group and family of standards for wireless local area networks (WLANs), first approved in 1997, whose best-known implementations are marketed as Wi-Fi.

IEEE 802.11 Working Group

The IEEE 802.11 Working Group is the IEEE standards body that develops and maintains the 802.11 wireless LAN standards that form the technical basis of Wi-Fi.

IEEE 802.11a

IEEE 802.11a is a 1999 amendment to the 802.11 wireless LAN standard that uses OFDM in the 5 GHz band, with data rates up to 54 Mbit/s.

IEEE 802.11ac-2013

IEEE 802.11ac-2013, marketed by the Wi-Fi Alliance as Wi-Fi 5, is an amendment to the 802.11 wireless LAN standard that raised speeds in the 5 GHz band.

IEEE 802.11ad

IEEE 802.11ad, marketed as WiGig, is a 2012 amendment to the IEEE 802.11 wireless LAN standard enabling very high throughput in the 60 GHz band, the first multi-gigabit Wi-Fi technology.

IEEE 802.11ah

IEEE 802.11ah, known commercially as Wi-Fi HaLow, is an IEEE wireless LAN standard published in 2017 that operates below 1 GHz for long-range, low-power IoT uses.

IEEE 802.11ax

IEEE 802.11ax, marketed as Wi-Fi 6, is a 2021 amendment to the IEEE 802.11 wireless LAN standard adding OFDMA, uplink multi-user MIMO, and 6 GHz operation.

IEEE 802.11ay

IEEE 802.11ay is an amendment to the Wi-Fi standard, published in 2021, that extends 60 GHz 802.11ad toward 100 Gb/s using MIMO, channel bonding, and improved beamforming.

IEEE 802.11b

IEEE 802.11b is a 1999 amendment to the 802.11 wireless LAN standard that raised data rates from 2 to 11 Mbit/s in the 2.4 GHz band.

IEEE 802.11bd

IEEE 802.11bd is an amendment to the IEEE 802.11 wireless LAN standard, published in 2022, that enhances vehicle-to-everything (V2X) communications as the successor to 802.11p and DSRC.

IEEE 802.11bn

IEEE 802.11bn, known in industry as Wi-Fi 8, is an IEEE amendment titled Enhancements for Ultra High Reliability that targets consistent Wi-Fi performance, with final approval expected in 2028.

IEEE 802.11e

IEEE 802.11e is a 2005 amendment to the IEEE 802.11 wireless LAN standard that adds quality of service support so Wi-Fi can carry voice and video alongside data.

IEEE 802.11g

IEEE 802.11g is a wireless LAN standard ratified in 2003 that extended the 2.4 GHz band to 54 Mbit/s using OFDM and kept compatibility with older 802.11b devices.

IEEE 802.11n

IEEE 802.11n is a 2009 amendment to the Wi-Fi standard, the first to use MIMO antenna technology, with maximum throughput of at least 100 Mb/s.

IEEE 802.11n-2009

IEEE 802.11n-2009, commercially known as Wi-Fi 4, is a 2009 amendment to the IEEE 802.11 Wi-Fi standard that introduced MIMO antennas and data rates up to 600 Mbit/s.

IEEE 802.11p

IEEE 802.11p is a 2010 amendment to the IEEE 802.11 wireless LAN standard defining radio communication between vehicles and roadside units in the 5.9 GHz band.

IEEE 802.11s

IEEE 802.11s is a 2011 amendment to the IEEE 802.11 wireless LAN standard, Amendment 10, defining mesh networking so wireless access points can link by radio instead of cables.

IEEE 802.11v

IEEE 802.11v is a 2011 amendment to the IEEE 802.11 Wi-Fi standard adding wireless network management, with network-assisted power saving to extend battery life and network-assisted roaming between access points.

Multi-link operation

Multi-link operation (MLO) is a defining feature of Wi-Fi 7 (IEEE 802.11be) that lets a device use several radio links at once for higher throughput and lower latency.

Wi-Fi 6

Wi-Fi 6 is the Wi-Fi Alliance's market name, introduced in 2018, for wireless products based on IEEE 802.11ax, the sixth Wi-Fi generation, certified from 2019 and built for dense environments.

Wi-Fi 7

Wi-Fi 7, the marketing name for IEEE 802.11be (Extremely High Throughput), succeeded Wi-Fi 6 with 320 MHz channels, 4096-QAM, and multi-link operation across the 2.4, 5, and 6 GHz bands.

Wi-Fi 8

Wi-Fi 8 is the marketing name for IEEE 802.11bn, an IEEE wireless LAN standard due around 2028 that prioritizes reliable, low-latency connectivity over higher peak speeds.

Wi-Fi Location

Wi-Fi Location, also called Wi-Fi Round Trip Time (RTT) ranging, is a protocol from IEEE 802.11mc that measures a device's distance to access points for indoor positioning.

Wireless distribution system

A wireless distribution system (WDS) is a system that interconnects IEEE 802.11 access points wirelessly without a wired backbone, using four-address frames the standard defines but never explains how to configure.