Physical layer

July 10, 2016 · View on GitHub

Series of standards that include 2G, 3G, and 4G (a term which is disputed).

4G is only a marketing term.

Wide area.

Is an incompatible fork from the 3GPP 4G, causing confusion

TODO

Part of UMTS?

TODO dates

https://en.wikipedia.org/wiki/Wi-Fi_Alliance defines it as the IEEE 802.11.XXX family of protocols.

So Wi-Fi is just a marketing term.

It is so dominant that people call WLAN Wi-Fi.

Connect two computers directly through Wi-Fi without a router.

Initially IEEE 802.15.1, but no longer maintained by IEEE.

Less powerful than Wi-Fi, but less expensive / energy consuming.