Impact of scattering environment on the performance of spectrum sensing in multiantenna cognitive radio systems

Author

Rodriguez, Oscar Filio ; Primak, Serguei ; Kontorovich, Valeri

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada

fYear

2012

fDate

28-29 May 2012

Firstpage

38

Lastpage

43

Abstract

When working with multiple antenna systems, spatial and/or temporal correlation between antennas has a great impact on the overall performance of the communication system. In this paper we present an approximate approach for accounting for both spatial and temporal correlation in cognitive radio devices equipped with multiple antennas. We derive an equivalent number of independent samples, based on the scattering geometry and resulting correlation properties of the received signal. The performance of the system is investigated in terms of the Neyman-Pearson detection criteria. The results of the theoretical analysis are verified through numerical simulations.

Keywords

antennas; approximation theory; cognitive radio; radio spectrum management; Neyman-Pearson detection criteria; approximate approach; multiantenna cognitive radio system; numerical simulation; scattering environment; scattering geometry; spatial correlation; spectrum sensing performance; temporal correlation; Antennas; Correlation; Covariance matrix; Eigenvalues and eigenfunctions; Scattering; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (QBSC), 2012 26th Biennial Symposium on

Conference_Location

Kingston, ON

Print_ISBN

978-1-4673-1113-7

Electronic_ISBN

978-1-4673-1112-0

Type

conf

DOI

10.1109/QBSC.2012.6221347

Filename

6221347