WiMAX stands for the following.
WiMAX is a digital communications system which provides wireless access to the Internet. WiMAX is not to be confused with WiFi. WiMAX provides access to long range wireless broadband, whereas WiFi provides access to a wireless local area network (LAN).
WiMAX is the commercial name for the IEEE 802.16 standard, but is also referred to as WirelessMAN to industry insiders.
IEEE stands for the Institute of Electrical and Electronics Engineers, a Not-for-Profit association located in New York City. WiMAX refers to the 802.16 standard as a whole, but there has been many revisions in the IEEE 802.16 standard. Eighteen from 2001 to 2010.
As of early 2010, 802.16 provides a download speed of 40 Mbit/s. But, the current revision being developed by the IEEE hopes to see 802.16 provide a download speed of 1 Gbit/s.
The WiMAX Forum, located at http://www.wimaxforum.org/, aims to certify products which provide WiMAX, and develop recognised standards and publish technical specifications for manufacturers.