Much of the information for this post was taken from this site.
What’s in a name?
WIMAX stands for Worldwide Interoperability for Microwave Access. However, it has nothing to do with how you heat your food.
You may also have heard of WiMax being referred to as IEEE 802.16, which refers to the Institute of Electric and Electronics Engineers’ working group on Broadband Wireless Access Standards.
You may also hear of WiMax referred to by its official name, WirelessMAN, for Wirless Metropolitan Area Networks. (You’ve heard of a LAN line? This is a MAN line).
Why WiMax?
- High Speed internet access (currently offered through broadband access)
- Wireless access (making it less expensive to extend to suburban and rural areas)
- Broad coverage (like you get with your cell phone instead of with small WiFi hotspots)
What’s it look like?


This is a WiMax transmitting tower. Photo courtesy of Intel.
WiFi HotSpots are literally spots. But WiMax-
- Can provide non-line-of-site wireless coverage in a 25 square miles range.
- Can provide coverage via line-of-sight antennas to a 2800 square mile range.
The increased range is due to the frequencies used and the power of the transmitter.
IEEE 802.16 Specifications
- Range – 30-mile (50-km) radius from base station
- Speed – 70 megabits per second
- Line-of-sight not needed between user and base station
- Frequency bands – 2 to 11 GHz and 10 to 66 GHz (licensed and unlicensed bands)
- Defines both the MAC and PHY layers and allows multiple PHY-layer specification
Great! What should we do?
1. Figure out who is going to pay for it
2. Make sure it’s not going to give us cancer.
3. Tell all your friends.
4. Elect a president who knows how to use the internet.
What’s next?
Now that we’ve seen PAN (the Personal Area Network – like Bluetooth), LAN (Local Area Network), CAN (Campus Area Network), and now we have the emerging MAN (Metropolitan Area Network), what’s next?
Picture your internet working like today’s cell phone networks – travel across the country and have access to the network the entire time.
The answer is GAN! The Global Area Network. IEEE 802.20