Simulation of direction of arrival and beamforming algorithms used in smart antenna system for software-defined radio

The demand for mobile communication systems with global coverage, interfacing with various standards and protocols, high data rates and improved link quality for a variety of applications has dramatically increased in recent years. The Software-Defined Radio (SDR) is the recent proposal to achieve these. In SDR, new concepts and methods, which can optimally exploit the limited resources, are necessary. Smart antenna system is one of those, which combats the co-channel interference and maximizes the user capacity of mobile communication system. The paper presents the analysis of the beamforming and direction of arrival (DOA) algorithms used in the smart antenna systems. The analysis is carried out for the MUltiple SIgnal Classification (MUSIC) algorithm and The Multiple Sidelobe Canceller and the Maximum SINR Beamformer algorithm using MATLAB as a simulation tool.