Introduction to WiMax and Broadband Access Technologies

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What is WiMax?

WiMax (Worldwide Interoperability for Microwave Access) is a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL.
The technology is specified by the Institute of Electrical and Electronics Engineers Inc., as the IEEE 802.16 standard.

It is a non-profit industry body dedicated to promoting the adoption of this technology and ensuring that different vendors’ products will interoperate.
It is doing this through developing conformance and interoperability test plans and certification program.
WiMAX Forum Certified™ means a service provider can buy equipment from more than one company and be confident that everything works together.

WiMAX is expected to provide fixed , nomadic, portable and, eventually, mobile wireless broadband connectivity without the need for direct line-of-sight (LOS) with a base station.
In a typical cell radius deployment of three to ten kilometers, WiMAX Forum Certified™ systems can be expected to deliver capacity of up to 40 Mbps per channel, for fixed and portable access applications.
Mobile network deployments are expected to provide up to 15 Mbps of capacity within a typical cell radius deployment of up to three kilometers.

Simultaneously support hundreds of businesses with T-1 speed connectivity and thousands of homes with DSL speed connectivity.
Promise of potential low cost and flexibility in building broadband networks.
Scalability, as extra channels and base stations can be added incrementally as bandwidth demand grows.
Support for both voice and video as well as Internet data.
Semiconductor vendors envisage WiMax-enabled chips appearing in PCs in 2006 and in notebook computers and PDAs by 2007

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