Linear, Non-Linear Adaptive Beamforming Algorithm for Smart Antenna System

The major part of smart antenna system is the selection of beam forming algorithms in adaptive antenna arrays. Adaptive beam forming algorithms help us to adjust the weight of antenna arrays such that a main beam is formed in the direction of desired target and nulls in the direction of undesired targets. This reduces interference and increases the capacity of communication network which are the desired properties of smart antenna. This piece of work provides comparative analysis of linear least mean square (LMS) and decision feedback equalizer based least mean square (DFE-LMS) algorithm through simulating various parameters such as power, phase and amplitude. Implementation is done with the help of Mat-lab l. The result shows that DFE-LMS algorithm is a more useful one.