Sunday, January 2, 2011

An intro to WiMAX

WiMAX (Worldwide Interoperability for Microwave Access) ( 802.16 - 802.16e )



     It was defined by the WiMAX Forum is a telecommunication protocol that provided fixed and fully mobile broadband access (IEEE 802.16e ). WIMAX was developed to promote conformance and interoperability of the IEEE 802.16 standard (Wireless MAN). Meanwhile WIMAX Forum is the organization which dedicated to certifying the interoperability of broadband wireless access (BWA). WIMAX Forum will conduct the testing to ensure that different mobile broadband system from many manufactures work properly.

    
With WIMAX service, provider can provides broadband wireless access (BWAP up to 50 km for fixed subscriber and 5-15 km for mobile subscribers). In contrast, the WiFi/802.11 is limited only 30-100 m. the current WIMAX can provide the speed up to 75 Mbps and expected can reach up to 1 Gbps. Talking about the speed that can be guaranteed by WIMAX service, there was a misconception that WIMAX can deliver the speed up to 70 Mbps over 112.6 km. In practice, WIMAX could deliver symmetrical speed up to 10 Mbps at km with Line of sight (LOS) condition. Meanwhile in urban area, WIMAX can deliver only up to 10 Mbps over 2 km.



     WIMAX is the new competition to the current mobile broadband technologies which already deployed by many mobile broadband provider. With the launch of WIMAX, it will compete with 3G service such as CDMA2000 and UMTS. There fore in many cases when there will be a plan to launch the WIMAX service, current mobile provider which already provided 3G service will join the get the license to have WIMAX service. There are many benefits while mobile provider launch WIMAX service compared current 3G service such as WIMAX offers symmetrical bandwidth over many kilometer, effective cost and reducing the cost of T2 and E1.

Q :

Can WiMAX controls the cellular communications systems world or LTE will do this ?

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