Performance Analysis of Beamforming Algorithms
Reeta Gaokar, Alice N. Cheeran · 2011
Beamforming is an array signal processing which increases signal to interference-noise ratio (SINR) by mitigating cochannel interferences present in wireless mobile cellular system. This paper presents importance of beamforming technique for next generation broadband wireless mobile systems. Beamforming is a powerful means of increasing capacity, data rates and coverage of the cellular system. In this paper three beamforming techniques, Null steering, Minimum variance distortionless response (MVDR) and Minimum mean square error (MMSE) are presented. Simulation has been carried out for all three algorithms. Simulation result shows that beamforming reduces the interference power significantly thereby increasing output signal to interference-noise ratio (SINR). This paper includes simulation results and performance analysis of these beamforming techniques. Depending on the application one of the methods is selected for deployment of beamforming antenna. Keywords Null steering beamforming; multi-beamforming; minimum variance distortionless response beamforming; minimum mean square error beamforming; signal to interference-noise ratio. I.