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Front. Inform. Technol. Electron. Eng.  2013, Vol. 14 Issue (10): 792-798    DOI: 10.1631/jzus.C1300086
    
Spectrum sensing using multiple dual polarization antennas for cognitive radio systems in microcell environments
Yi-hu Xu, Myoung-Seob Lim
Division of Electronics & Information Engineering, Chonbuk National University, Jeonju 561756, Korea
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Abstract  Spectrum sensing with multiple antennas for cognitive radio systems in microcell environments is affected by the spatial correlation among multiple antennas. To reduce the adverse effects of the spatial correlation on the spectrum sensing performance, we employ multiple dual polarization antennas at the sensing node of secondary users. The analysis of the spatial correlation is derived using the propagation characteristics of the electromagnetic wave based on the scattering patch model in a multipath microcell environment. The superiority of spectrum sensing with multiple dual polarized antennas over multiple mono-polarized antennas is shown by analyzing the false alarm and detection probabilities with the correlation among the antennas in a microcell environment.

Key words： Dual polarization      Multiple antennas      Spatial correlation      Spectrum sensing      Cognitive radio     
Received: 15 April 2013      Published: 08 October 2013
CLC:  TN92  
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Cite this article:

Yi-hu Xu, Myoung-Seob Lim. Spectrum sensing using multiple dual polarization antennas for cognitive radio systems in microcell environments. Front. Inform. Technol. Electron. Eng., 2013, 14(10): 792-798.

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http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.C1300086     OR     http://www.zjujournals.com/xueshu/fitee/Y2013/V14/I10/792


Spectrum sensing using multiple dual polarization antennas for cognitive radio systems in microcell environments

Spectrum sensing with multiple antennas for cognitive radio systems in microcell environments is affected by the spatial correlation among multiple antennas. To reduce the adverse effects of the spatial correlation on the spectrum sensing performance, we employ multiple dual polarization antennas at the sensing node of secondary users. The analysis of the spatial correlation is derived using the propagation characteristics of the electromagnetic wave based on the scattering patch model in a multipath microcell environment. The superiority of spectrum sensing with multiple dual polarized antennas over multiple mono-polarized antennas is shown by analyzing the false alarm and detection probabilities with the correlation among the antennas in a microcell environment.

关键词： Dual polarization,  Multiple antennas,  Spatial correlation,  Spectrum sensing,  Cognitive radio 
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