01-07-2014, 03:42 PM
WiMAX Technology
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Abstract
The main problems with broadband access today are that it is pretty expensive and it doesn't reach all areas. The main problem with WiFi access is that hot spots are very small, so coverage is sparse. What if there were a new technology that solved all of these problems? This new technology would provide
Introduction
The WiMAX technology provides a wireless connectivity efficiently; it is essentially a technology solution to create wireless WAN and is meant to provide high-speed Internet and that is the real advantage of WiMAX.
As a technology WiMAX is growing rapidly. And due to the ease with which it can be deployed and maintained, it has the potential
How does WiMAX work?
The basic idea in WiMAX is to use high transmit power and focused signals, using directional antennas. The base standard operates in the 10 GHz to 60 GHz range. Thus, the risk of interference is very limited. Theoretically, a signal channel can
provide data rates of up to 100 Mbps on both uplink and downlink. Operators can
use multiple channels and provide bandwidths up to 350 Mbps. This significantly higher than all the existing Wi-Fi and cellular technologies, which can, at best, provide 100 Mbps, respectively?
WiMAX in India
Chennai-based Aircel Business Solutions (ABS) has launched wireless Internet services in the city with the help of WiMAX. The project is currently in its beta stage and the company has successfully conducted trials over the last year.
The Pune Municipal Corporation (PMC) has plans to cover 400 sq kilometres of the city with wireless connectivity. The project, “Unwired Pune”, will make use of a combination of both the WiMAX and Wi-Fi technologies. It is expected to be completed by 2007.
The recently merged Alcatel-Lucent alliance has decided to utilize India for manufacturing broadband and WiMAX equipment through a transfer of technology and contract manufacturing arrangement with state-owned ITI. This will happen at the ITI plant at Naini in Uttar Pradesh.
Intel plans to start WiMAX trials in the next few months in several cities across India including in Mumbai, Delhi, Bangalore and Pune, the Daily News & Analysis reports.
A survey reveals that there will be around 13 million WiMAX subscribers in India by 2012
Conclusion
In the future we expect to see an array of wireless systems, including 3G, Wi-Fi and WiMAX, tied together by the higher-layer standards like IMS (IP Multimedia System). Integrating those technologies in a way that allows a wide range of devices to move transparently across networks won’t be easy, but as standards evolve, that hope is likely to be realized. WiMAX may have its competitors but at the moment, it is the technology most likely to make the world really 'Wire-Free