WiMAX (worldwide interoperability for microwave

access),a technology based on an evolving standard for

point-to-multipoint wireless networking. Wireless

internet services can be provided to user s antennas

through transreceivers, for which carriers use WiMAX

[l].WiMAX, a standard based technology(802.16x)

has emerged as an alternative to cables and DSL in

providing Wireless broadband access. WiMAX a forum

certified system will provide fixed,, nomadic ,portable

mobile wireless broadband connectivity. This paper

focuses on how WiMAX evolved, its standards, market

potential and how it can migrate into the promising

world of 4G.