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WiMax Competing Technologies

As we learnt in the previous pages, that WiMax was formed to complement Bluetooth and WiFi technologies, let us look at the differences in each of these:







2 ~V 11 GHz

2.4 GHz



~31 miles

~100 metres

~10 metres

Data Transfer Rate


11 ~V 55mbps

20 ~V 55mbps



> 10

> 10

Table 1 ~V Difference between WiMax, WLAN and Bluetooth 

The 802.11 is based on a distributed architecture, whereas, WiMax is based on a centrally controlled architecture. In this the scheduler residing in the Base station (BS) has the complete control of the wireless media access. WiMax can support multiple connections conforming to a set of QoS parameters and provides the packet classifier ability to map the connections to many user applications and interfaces.

WiFi and WiMax may end up complementing each other, but a new technology, IEEE 802.20, might give them both a run for their money. IEEE 802.20 standard like the 802.16 is aimed at wireless high-speed connectivity to mobile consumer devices like cellular phones, PDAs and laptops. It will operate in the 500 MHz ~V 3.5 GHz and is led by Flarion Technologies and ArrayComm.

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