Spectrum sensing using dual polarized multiple antennas in cognitive radio systems

Author

Yihu Xu ; Myoung-Seob Lim

Author_Institution

Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea

fYear

2012

fDate

15-17 Oct. 2012

Firstpage

914

Lastpage

917

Abstract

Spectrum sensing with multiple antennas for cognitive radio systems is analyzed as the detection probability with correlation among antennas. In order to reduce the adverse effect of the spatial correlation on spectrum sensing performance, we proposed to employ dual polarized multiple antennas at the secondary sensing nodes. The spectrum sensing performance degradation due to the antenna correlation is then investigated under LOS as well as multipath environment. The superiority of spectrum sensing with dual polarized multiple antennas over conventional multi antennas with only vertical polarization under multipath channel environment are verified by numerical simulation results.

Keywords

antenna arrays; cognitive radio; numerical analysis; radio spectrum management; antenna correlation; cognitive radio system; detection probability; dual polarized multiple antenna; numerical simulation; secondary sensing node; spatial correlation; spectrum sensing performance; vertical polarization; Antennas; Cognitive radio; Correlation; Detectors; Microcell networks; Scattering; cognitive radio; correlated multiple antennas; dual polarization; spectrum sensing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (APCC), 2012 18th Asia-Pacific Conference on

Conference_Location

Jeju Island

Print_ISBN

978-1-4673-4726-6

Electronic_ISBN

978-1-4673-4727-3

Type

conf

DOI

10.1109/APCC.2012.6388241

Filename

6388241