As the WiMAX industry has grown, so has WiMAX hype and confusion. Mobility managers and decision makers have to sort through the hype to facilitate their knowledge and understanding of WiMAX technology. Paul DeBeasi, senior analyst at the Burton Group, sets the stage for a broad overview of what WiMAX is and how it works.
DeBeasi begins this tutorial by introducing WiMAX technology, applications and terminology. Further sections discuss WiMAX services, performance, security and devices.
In this tutorial:
WiMAX: Technology overview
WiMAX: Services
WiMAX performance
WiMAX security
WiMAX devices
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Current FCC regulations limit power output to 1 Watt EIRP (Effective Isotropic Radiated Power) for 802.11b/g (2.4GHz) devices. Most wi-fi cards are 50 milliwatt or 100mW, and there are a few 200mW and 400 miliwatt cards out there. Compare this with microwave ovens, which can emit 500 to 700 Watts to heat up your dinner.
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Scientists have said there is no evidence to suggest a link between the use of wi-fi and damage to health.
BBC programme Panorama found that radiation levels from wi-fi in one school was up to three times the level of mobile phone mast radiation. The readings were 600 times below the government's safety limits but there is ongoing debate about wi-fi use.
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A number of education professionals have raised concerns about the use of wi-fi internet networks in schools, following a Panorama report into the technology. So just how safe is it?
What is wi-fi?
Wi-fi is the acronym for Wireless Fidelity, essentially a set of standards for transmitting data over a wireless network.
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