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  2. IEEE 802.11n-2009 - Wikipedia

    en.wikipedia.org/wiki/IEEE_802.11n-2009

    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.

  3. IEEE 802.11 - Wikipedia

    en.wikipedia.org/wiki/IEEE_802.11

    This Linksys WRT54GS, a combined router and Wi‑Fi access point, operates using the 802.11g standard in the 2.4 GHz ISM band using signalling rates up to 54 Mbit/s. IEEE 802.11 Wi-fi networks are the most widely used wireless networks in the world, connecting devices like laptops (left) to the internet through a wireless router (right).

  4. Wireless LAN - Wikipedia

    en.wikipedia.org/wiki/Wireless_LAN

    This notebook computer is connected to a wireless access point using a PC Card wireless card. An example of a Wi-Fi network. A wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building.

  5. Block acknowledgement - Wikipedia

    en.wikipedia.org/wiki/Block_acknowledgement

    Block acknowledgement (BA) was initially defined in IEEE 802.11e as an optional scheme to improve the MAC efficiency. 802.11n amendment ratified in 2009 enhances this BA mechanism then made it as mandatory to support by all 802.11n-capable devices (formally known as HT - High Throughput devices).

  6. List of WLAN channels - Wikipedia

    en.wikipedia.org/wiki/List_of_WLAN_channels

    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.

  7. List of wireless network protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    For wider area communications, wireless local area network (WLAN) is used. WLANs are often known by their commercial product name Wi-Fi. These systems are used to provide wireless access to other systems on the local network such as other computers, shared printers, and other such devices or even the internet.

  8. Service set (802.11 network) - Wikipedia

    en.wikipedia.org/wiki/Service_set_(802.11_network)

    [13] [n 1] A null SSID (the SSID element's length field is set to zero [11]) is called a wildcard SSID in IEEE 802.11 standards documents, [14] and as a no broadcast SSID or hidden SSID in the context of beacon announcements, [13] [15] and can be used, for example, in enterprise and mesh networks to steer a client to a particular (e.g. less ...

  9. 802.11 frame types - Wikipedia

    en.wikipedia.org/wiki/802.11_Frame_Types

    The two-bit protocol version subfield is set to 0 for WLAN (PV0) and 1 for IEEE 802.11ah (PV1). The revision level is incremented only when there is a fundamental incompatibility between two versions of the standard. [1] [2] PV1 description is incorporated in the latest 802.11-2020 standard.