JOURNAL OF COMMUNICATIONS (JCM)
ISSN : 1796-2021
Volume : 2    Issue : 4    Date : June 2007

A Setup for the Evaluation of MUSIC and LMS Algorithms for a Smart Antenna System
Raed M. Shubair, Mahmoud A. Al-Qutayri, and Jassim M. Samhan
Page(s): 71-77
Full Text:
PDF (442 KB)


Abstract
This paper presents practical design of a smart antenna system based on direction-of-arrival
estimation and adaptive beamforming. Direction-of-arrival (DOA) estimation is based on the MUSIC
algorithm for identifying the directions of the source signals incident on the sensor array comprising
the smart antenna system. Adaptive beamforming is achieved using the LMS algorithm for directing
the main beam towards the desired source signals and generating deep nulls in the directions of
interfering signals. The smart antenna system designed involves a hardware part which provides
real data measurements of the incident signals received by the sensor array. Results obtained
verify the improved performance of the smart antenna system when the practical measurements of
the signal environment surrounding the sensor array are used. This takes the form of sharper
peaks in the MUSIC angular spectrum and deep nulls in the LMS array beampattern.

Index Terms
Smart antennas, DOA estimation, adaptive beamforming, least mean squares.