How WiMAX Works

The backhaul of the WiMAX system is based on the typical connection to the public wireless networks by using optical fibre, microwave link, cable or any other high speed connectivity. In few cases such as mesh networks, Point-to-Multi-Point (PMP) connectivity is also used as a backhaul. Ideally.
A base station serves subscriber stations using Non-Line-of-Sight (NLOS) or LOS Point-to-Multi-Point connectivity; and this connection is referred to as the last mile communication. Ideally, WiMAX system should use NLOS Point-to-Multi-Point antennas to connect residential or business subscribers to the Base Station (BS). A Subscriber Station typically serves a building using wired or wireless LAN. (Steven J. Vaughan-Nichols, June 2004)