WiMAX operates on the same general principles as Wi-Fi — it sends data from one computer to another via radio signals. A computer (either a desktop or a laptop) equipped with WiMAX would receive data from the WiMAX transmitting station, probably using encrypted data keys to prevent unauthorized users from stealing access. | 12 WiMAX A Wireless Technology Revolution supporting both Wi-Fi and WiMAX will be available for notebook computers PDAs smart phones and other handheld devices thus enabling end users a seamless transition between LANs and MANs. What this points out is that WiMAX actually can provide two forms of wireless service there is the NLoS Wi-Fi sort of service where a small antenna on your computer connects to the tower. In this mode WiMAX uses a lower frequency range . 2 to 11 GHz similar to Wi-Fi . Lower-wavelength transmissions are not as easily disrupted by physical obstructions they are better able to diffract or bend around obstacles. There is LoS service where a fixed dish antenna points straight at the WiMAX tower from a rooftop or pole. The LoS connection is stronger and more stable so it is able to send a lot of data with fewer errors. LoS transmissions use higher frequencies with ranges reaching a possible 66 GHz. At higher frequencies there is less interference and lots more bandwidth. Wi-Fi-style access will be limited to a 4- to 6-mi radius perhaps 25 sq mi or 65 sq km of coverage which is similar in range to a cell-phone zone . Through the stronger LoS antennas the WiMAX transmitting station would send data to WiMAX-enabled computers or routers set up within the transmitter s 30-mi radius 2800 sq mi or 9300 sq km of coverage . This is what allows WiMAX to achieve its maximum range. WiMAX operates on the same general principles as Wi-Fi it sends data from one computer to another via radio signals. A computer either a desktop or a laptop equipped with WiMAX would receive data from the WiMAX transmitting station probably using encrypted data keys to prevent unauthorized users from stealing access. The fastest Wi-Fi connection can transmit up to 54 Mbps under optimal conditions. WiMAX should be able to handle up to 70 Mbps. Even once that 70 Mb is split up between several dozen businesses or a few hundred home users it will provide .
