1. What is WiMax? Worldwide Interoperability for Microwave Access.
Long Range Wireless Networking Standard.
WiMax is WMAN Technology that will connect (WiFi) hotspots to the internet & provide a wireless extension to cable & DSL last mile broad band access.

2. WiMax Forum
WiMax Industry Group (Forum) has been formed to promote the IEEE standards & to develop interoperability specifications.

3. WiMAX Services Non Line Of Sight Service
User within 3-5 miles of the base station is required to establish using a NLOS with data rate as high as 75 MBps.
WiMax uses radio waves in the range from 2 to 11 GHz.
Partially penetrate buildings, bend and reflect around obstacles to some extent. .

4. WiMAX Services Non Line Of Sight Service
So the BS and client antennas do not need a clear line of sight between them, which is much more practical in an urban environment.
But there is also another significant consequence due to the nature of spectrum regulation

5. Line Of Sight Service
Line Of Sight Service where a fixed dish antenna points straight at the WiMAX tower .
Users up to 30 miles away from the base station with LOS may have data rate 280 Mbps.
Frequency Range 66 GHZ
Less Interference
More stronger.
More Data Rate.
Back haul

6. Why is WiMax Unique?

8. Wi-Fi Vs WiMAX Range Wi-Fi 100 ft , Wi Max up to 30 miles Coverage
Wi-Fi suitable for Indoor Applications, Wi-MAX NLOS performance standard support outdoor
Data Rate
Wi-Fi 54 Mbps, WiMAX Mbps
Mobility
Wi-Fi No, But WiMax Yes
Scalability
Wi-Fi No, But WiMax Flexible use of spectrum