to ensure operability among devices based on the 802.16 standard from different
manufacturers. For more details see references [18] and [19].
21.15 World Interoperability for MicroAccess, Inc. (WiMAX)
WiMAX is an advanced technology solution based on an open standard, designed
to meet the need for very high speed wide area Internet access, and to do so in a
low-cost, fl exible way. It aims to provide business and consumer broadband service
on the scale of the metropolitan area network (MAN). WiMAX networks are
designed for high-speed data and will spur innovation in services, content, and new
mobile devices. WiMAX is optimized for IP-based high-speed wireless broadband
which will provide for a better mobile wireless broadband Internet experience.
The WiMAX product certifi cation program ensures interoperability between
WiMAX equipment from vendors worldwide. The certifi cation program also considers
interoperability with high performance radio metropolitan area network (HIPERMAN),
the European telecommunication standards institute’s MAN standard.
With its large range and high transmission rate, WiMAX can serve as a
backbone for 802.11 hotspots for connecting to the Internet. Alternatively, users
can connect mobile devices such as laptops and handsets directly to WiMAX base
stations without using 802.11. Mobile devices connected directly can achieve a
Hotspot
Internet
Office building
Mobile client
Home with external CPE
WiMAX NLOS connect
ion
WiMAX NLOS backhaul
Fixed backhaul
Home with
portable CPE
IEEE 802.11
CPE : Customer Premises Equipment
