SMART ANTENNA DESIGN FOR WIRELESS COMMUNICATION USING ADAPTIVE BEAM-FORMING APPROACH


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INTRODUCTION


The dramatic growth of the wireless communication industry has resulted in searches for new technologies to provide broader bandwidth per user channel, better quality, and new value-added services.
Due to drastical increase in wireless communication system, it is necessary to increase the Data Transmission Speed and Coverage Area.


PREVIOUS DRAW BACKS


Current and future demands in mobile communication for various high speed multimedia data services entail a robust, high data rate transmission system.
Some problems like multipath fading, co-channel interference and Doppler effects need to be addressed.


Adaptive Beam forming:


If the weights are computed and adaptively updated in real time, the process is called adaptive beam forming.


ADVANTAGES


Reduces the multipath fading problem.
Reduction in Inter symbol interference.
Improves the convergence.
Improves the signal quality.
Low Cost.


APPLICATIONS


North American cellular system.
PCS systems.
In Cellular radio stations.
Radars.
Broadband wireless access networks.