In this article we will discuss WiMAX, will make brief discussion on WiMAX, last article we discuss about FDDI.

WiMAX (Worldwide Interoperability for Microwave Access) is a family of wireless broadband communication standards based on the IEEE 802.16 set of standards, which provide multiple physical layer (PHY) and Media Access Control (MAC) options.

According to some estimates, the current subscriber equipment costs about $300, about two times (roughly speaking) the price of WiFi, cable and DSL customer premise equipment. In-Stat, estimates that it would take a total of $3 billion to set-up a national WiMAX network in the US.

Wi-Fi typically provides local network access for a few hundred feet with the speed of up to 54 Mbps, a single WiMAX antenna is expected to have a range of up to 40 miles with the speed of 70 Mbps or more. As such, WiMAX can bring the underlying Internet connection needed to service local Wi-Fi networks.

The WiMAX architecture developed by the WiMAX form supports is a unified network architecture to support fixed, nomadic and mobile operation. Connectivity Service Network, CSN: This part of the WiMAX network provides the IP connectivity and all the IP core network functions.

Fixed WiMAX operates in the 2.5 GHz and 3.5 GHz frequency bands, which require a licence, as well as the licence-free 5.8 GHz band. Mobile WiMAX, also called IEEE 802.16e, allows mobile client machines to be connected to the Internet.


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