What is WiFi

look-ma-no-wiresWi-Fi is a popular technology that allows an electronic device to exchange data wirelessly (using radio waves) over a computer network, including high-speed Internet connections.

Technically speaking, The WIFI (802.11) is a subset of the IEEE 802, that refers to a family of IEEE standards dealing with local area networks and metropolitan area networks.The IEEE 802 standards are restricted to networks carrying variable-size packets

The services and protocols specified in IEEE 802 map to the lower two layers (Data Link and Physical) of the seven-layer OSI networking reference model. In fact, IEEE 802 splits the OSI Data Link Layer into two sub-layers named Logical Link Control (LLC) and Media Access Control (MAC), so that the layers can be listed like this:

  • Data link layer
    • LLC Sublayer
    • MAC Sublayer
  • Physical layer

The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC).So,IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6 and 5 GHz frequency bands.

 

Mohit Kumar

A simple person who likes to share his thoughts on this blog. Know more about me

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