PHASED ARRAY ANTENNA ADAPTIVE BEAMFORMING FOR SPACE-TIME SIGNAL PROCESSING USING HYBRID GENETIC ALGORITHMS WITH MUTATION OPERATOR APPLIED TO RAYLEIGH FADING CHANNELS

In Today's World, the Wireless Community is in great demand of Increasing capacity and to provide high data rate services due to increase in the number of users and traffic due to a paradigm shift in the existing technology to support Internet Application domain due to the increased popularity of Broadband Wireless Access(BWA). The 2.4 GHz licensed band caters to a variety of applications and 5850-5925 MHz for Automotive Radar Applications. Smart Antenna Arrays here are finding wide popularity in the EM community because they have a potential to provide both high capacity by dynamically tuning Interference in real time Environment (automotive motion, aerodynamics) by adjusting the weights, separations as well as appropriate phases and have potential applications in Spacial Signal processing such as DOA estimation, adaptive beamforming and other DSP applications. A Novel Hybrid GA technique Hybrid Lamarckian-Baldwinian Model has been tested and found to be successful in solving Real Life problems. A Novel Equalization technique for mitigating the Multipath effects for Rayleigh Fading Schenario has also been studied here which has advantages over the MMSE and the Zero Forcing Equalization Techniques. The ability to adapt the radiation pattern (sidelobe, main beam direction, nulls, beam width) has always been a field of study from the past few decades