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The Mutual Coupling Effect on the MUSIC Algorithm for Direction of Arrival Estimation

by Mohamed M. M. Omar, Darwish A. E. Mohamed, Soha M. Haikel
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 35 - Number 4
Year of Publication: 2011
Authors: Mohamed M. M. Omar, Darwish A. E. Mohamed, Soha M. Haikel
10.5120/4392-6098

Mohamed M. M. Omar, Darwish A. E. Mohamed, Soha M. Haikel . The Mutual Coupling Effect on the MUSIC Algorithm for Direction of Arrival Estimation. International Journal of Computer Applications. 35, 4 ( December 2011), 36-40. DOI=10.5120/4392-6098

@article{ 10.5120/4392-6098,
author = { Mohamed M. M. Omar, Darwish A. E. Mohamed, Soha M. Haikel },
title = { The Mutual Coupling Effect on the MUSIC Algorithm for Direction of Arrival Estimation },
journal = { International Journal of Computer Applications },
issue_date = { December 2011 },
volume = { 35 },
number = { 4 },
month = { December },
year = { 2011 },
issn = { 0975-8887 },
pages = { 36-40 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume35/number4/4392-6098/ },
doi = { 10.5120/4392-6098 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:21:09.336871+05:30
%A Mohamed M. M. Omar
%A Darwish A. E. Mohamed
%A Soha M. Haikel
%T The Mutual Coupling Effect on the MUSIC Algorithm for Direction of Arrival Estimation
%J International Journal of Computer Applications
%@ 0975-8887
%V 35
%N 4
%P 36-40
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The smart antenna systems combine antenna arrays with digital signal processing (DSP) algorithms. In a smart antenna system a specialized signal processor computes the direction of arrival (DOA) of a user and also adds the strength of the signals from each antenna element together to form a beam towards the direction as computed by DOA. If additional users join in the system, the adaptive antenna processor can tune out unwanted interferers by placing nulls towards the signals not of interest, and concentrate on the desired user by the main beam toward the signal of interest. Smart antenna systems integrate with radio intelligence with antenna array technology to increase the channel capacity, coverage range and improve link quality. In adaptive array smart antenna, to locate the desired signal, various DOA estimation algorithms are used. This paper investigates the effect of mutual coupling on the Multiple Signal Classification (MUSIC) algorithm for DOA estimation and compares its performance with Bartlett algorithm. The half wavelength dipole antenna elements are used in the linear array antenna to carry out a performance study of the MUSIC and Bartlett algorithms by investigating the effect of the mutual coupling between the array elements. However simulation results in this paper show that MUSIC algorithm is highly accurate and stable and provides high angular resolution compared to Bartlett and hence applying the MUSIC algorithm is preferred in mobile communication to estimate the DOA of the arriving signals.

References
  1. L. C. Godara, "Application of Antenna Arrays to Mobile Communications, Part II: Beamforming and Direction-of-Arrival Considerations," Proceeding of the IEEE, vol.85, no. 8, pp. 1195-1245, August 1997.
  2. T.B.LAVATE, V. K. Kokate, A.M. Sapkal, "Performance Analysis of MUSIC and ESPRIT DOA Estimation Algorithms for Adaptive Array Smart Antenna in Mobile Communication," International Journal of Computer Networks (IJCN), Volume 2, Issue 3, pP: 152-158, July 2010 .
  3. F. B. Gross, Smart Antennas for Wireless communications with MATLAB, McGraw-Hill, 2005.
  4. . K. Sarkar, M. Wicks, M. Salazar-Palma and R. Bonneau, Smart antennas, John Wiley and Sons, 2003.
  5. M. S. Bartlett, "Smoothing Periodograms from Time Series with Continuous Spectra. " Nature, 161:686-687, 1948.
  6. S. S. Saleh, M. A. Abol-Dahab, M. M. Omar, " Effect of the Mutual Coupling on the Bartlett Algorithm to Estimate the Direction of Arrival", ICICS2009, Amman, Jordan, December 2009.
  7. L. C. Godara, "Smart Antennas", CRC Press. LLC, 2004.
Index Terms

Computer Science
Information Sciences

Keywords

Smart Antenna DOA MUSIC Bartlett Mutual Coupling

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