Comparative study of different beamforming techniques for 5g: A review

Abstract

Due to beamforming, there will be an increase in energy of signal to the intended user and decreases in interference which is the prime requirement of mmWave communications required for high data rates and large capacity applications. Different beamforming techniques such as analog, digital, hybrid beamforming along with their associated methods have been studied and compared in this paper for searching optimum architecture in terms of energy efficiency. Antenna parameters like gain, half-power beamwidth, scattering parameters are calculated at different frequencies by various authors using tools like ADS, HFSS, MATLAB, CST, and Microwave studio have been studied. While doing this comparison, both hardware, as well as software (algorithms) aspects of the techniques has been considered.