Original scientific paper

https://doi.org/10.7305/automatika.54-2.131

Comparison of DoA Estimation Algorithms in SDMA System

Tanuja S. Dhope ; Department for Wireless Communiations, Faculty of Electrical Engineering and Computing, University of Zagreb, Unska 3, HR-10000, Zagreb, Croatia
Dina Simunic orcid.org/0000-0002-2406-774X ; Department for Wireless Communiations, Faculty of Electrical Engineering and Computing, University of Zagreb, Unska 3, HR-10000, Zagreb, Croatia
Radovan Zentner ; Department for Wireless Communiations, Faculty of Electrical Engineering and Computing, University of Zagreb, Unska 3, HR-10000, Zagreb, Croatia

Abstract

With Space Division Multiple Access (SDMA) schemes employing digital signal processing algorithms in its smart antenna systems, it is possible to improve the system capacity of modern wireless communication systems by enabling user’s angular separation. Angular separation ability enhances reception in Signal-of-Interest direction and minimizes interference in Signal-of-Not-Interest direction. Direction of Arrival (DoA) algorithms are used for estimation of a number of incident plane waves on the antenna array and their incidence angles. This paper compares performance of three DoA algorithms: MUSIC, root-MUSIC and Capon applied on the uniform linear array in the presence of uncorrelated white noise. The simulation results show that MUSIC outperformed root-MUSIC and Capon in both required number of snapshots and number of array elements as well as in signal-to-noise ratio requirements.

Keywords

Capon; DoA estimation; MUSIC; root-MUSIC; MVDR

Hrčak ID:

103419

URI

https://hrcak.srce.hr/103419

Publication date:

2.5.2013.

Article data in other languages: croatian

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