WiMAX (IEEE 802.16) vs WiFi (IEEE 802.11)
IEEE 802.11 is a wireless LAN (indoor) protocol that was designed to operate in small cells (up to 100 meters) and that in the design phase never was considered as a point t ultipoint outdoor solution. IEEE 802.11 MAC suffers from the hiddennode problem and is known for bad performance in long distance links with many stations.
On the contrary, IEEE 802.16 was born to be a wireless metropolitan outdoor solution and was designed as an outdoor solution from the beginning. IEEE 802.16 is designed to operate in a typical cell size of 7 to 10 km and can handle distances up to 50 km. The hidden node problem was solved from the very early design phase by including DAMATDMA for the uplink where the base station allocates slots to each station.
http://www.winlab.rutgers.





by: leewPosted on 2008-11-06 at 20:23:40ID: 22901940
Hello GMartin,
ki/IEEE_80 2.16 ki/WiMAX
802.16 is WiMax - a sort of super-wifi when it comes to range, supposedly being able to provide a usable signal many miles away at speeds comparable to typical broadband available today (up to 70 Mbit, depending on how far from the device you are).
http://en.wikipedia.org/wi
http://en.wikipedia.org/wi
This is not a standard you are likely to implement yourself. ISPs including telecom companies and cable companies are contemplating deployment of the technology.
Regards,
leew