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

作　　者：Yi-hu XU Myoung-Seob LIM 

机构地区：[1]Division of Electronics & Information Engineering, Chonbuk National University

出　　处：《Journal of Zhejiang University-Science C(Computers and Electronics)》2013年第10期792-798,共7页浙江大学学报C辑（计算机与电子（英文版）

基　　金：Project supported by the Brain Korea 21 Plus of Korea and the Ministry of Trade,Industry&Energy(MOTIE);IDEC Platform Center(IPC)for Smart Car of Korea

摘　　要：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.Spectrum sensing with multiple antennas for cognitive radio systems in microeell 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 

分 类 号：TN925[电子电信—通信与信息系统]