I would like to know if WiFi can be generally referred to IEEE 802.11 standard in the context of IoT/machine-to-machine communications or the latter can be referred to as a more general family. I have found some people say that they literarily mean the same thing. Is this correct?
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Do WiFi and IEEE 802.11 mean the same thing?
Wi-Fi is IEEE 802.11, the same way that ethernet is IEEE 802.3, token ring is IEEE 802.5, FDDI is IEEE 802.8, etc.
These are some of the IEEE LAN protocols, and the IEEE working groups associated with the protocols. See this answer for more IEEE 802 working groups.
IEEE 802.11 is a standard that describes procedures, limits, values, algorithms to enstablish a WLAN connection.
Wi-Fi is a brand name owned by the Wi-Fi Alliance that certifies with pre-defined tests the interoperability between all device with this mark. WiFi devices are based on IEEE 802.11.
Not every device that uses IEEE 802.11 is Wi-Fi cerified.
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