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WiMax deployment- An Efficient and Useful Deployment Friendly Technology

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Post by Jawad Ahmad Riaz

Worldwide interoperability for microwave access (WiMax) is a famous wireless broadband replacement for cable DSL connection. Therefore it is considered as a last mile broadband access due to its fast and swift access to provide wireless connectivity. WiMax operates in the licensed radio frequency spectrum which gives its signal more strength and penetration.

WiMax can be used with some of the 4G technologies to convert local area networks into metropolitan area networks; this would provide wireless connectivity to entire city. It is founded on the standards of IEEE 802.16. If we try to deploy WiMax at large scale, it is possible to provide broadband wireless access to both business and home users at economical rates.

 

The need for WiMax Deployment

 

It is evident that this technology offers many benefits over other wireless and wired technologies due its reliable broadband connectivity. However still we observe it is not deployed as a major communication by some of the countries of the world. The reason is that people and nations still consider it an expensive and difficult to operate technology. Its widespread deployment is still limited to the large scale government projects. The reason is that it is assumed that it requires huge investment and all other benefits related to its use are neglected. In my view it can be really beneficial for the areas which are under developed and which lack the basic telecommunication infrastructure. WiMax technology can be deployed in the areas easily where it is almost impossible to take wired broadband connections. It is really simple to operate that  even a single WiMax base station is all that is needed to provide connectivity to SOHO ().

 

The Deployment of WiMax in Dense Areas

 

As a vivacious wireless technology it can support the small and medium sized enterprises located in the dense areas. However the deployment in some cases is limited due the spectral inefficiency.  It is difficult for the WiMax signals to carry on in the regions with very low density. On the contrary the importance of it cannot be overlooked, because it is possible to increase the range of WiMax. The multipurpose WiMax antennas are employed on different WiMax towers to increase the range and strength of WiMax. An example of licensed radio spectrum frequency which provides sufficient penetration in the areas with low density is 2.5GHz.This popular WiMax technology is able to cater emergency deployment needs in areas where the existing communication link has been broken down. For example it served the communication needs of people affected by Katrina typhoon in Florida in 2005.

 

The Frequency considerations in WiMax Deployment

 

    
The frequency range of WiMax is usually between 10GHz to 66GHz. However this is not sufficient to provide fast broadband connectivity in some areas, where it is difficult to make use of direct line of sight mechanism. This constriction can be defeated by using 802.16a standard which enables to use a frequency range of 2GHz and up to 11GHz. 802.16e enables the radio signals to move through the physical setup because it provides adjusted modulation to the signals. The wide spectrum ranging from 2GHz to 66GHz is sufficient to allow the favorable marketing and sales potential. The WiMax frequency can be extended to lower frequency ranges like 700 MHz. this deployment proved to be really beneficial for the auction in 2008 in USA. Another frequency range of about 1.7 GHz and 2.1GHz also received highest bids in 2006. The reason was that the licensees want to use it for improving existing GSM and UMTS coverage. Before deploying the WiMax for commercial purposes one must take into account the available frequency spectrum to avail the most favorable sales and utility prospective
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