Cooperative blind spectrum sensing using autocorrelation matrix

doi:10.1016/S1005-8885(10)60062-3

中国邮电高校学报(英文)

Cooperative blind spectrum sensing using autocorrelation matrix

焦传海¹,王可人²

1. Laboratory 304 of Communications and Information Systems, Electronic Engineering Institute, Hefei 230037, China 2. College of Electronic Information and Automation, Chongqing University of Technology, Chongqing 400054, China

收稿日期:2010-09-01 修回日期:2011-01-25 出版日期:2011-06-30 发布日期:2011-06-13
通讯作者: 焦传海 E-mail:jhb_8319@163.com
基金资助:
解放军电子工程学院博士创新基金

Cooperative blind spectrum sensing using autocorrelation matrix

1. Laboratory 304 of Communications and Information Systems, Electronic Engineering Institute, Hefei 230037, China 2. College of Electronic Information and Automation, Chongqing University of Technology, Chongqing 400054, China

Received:2010-09-01 Revised:2011-01-25 Online:2011-06-30 Published:2011-06-13
Contact: Chuan-hai JIAO E-mail:jhb_8319@163.com

摘要/Abstract

摘要：

To improve the spectrum sensing performance in cognitive radios, a scheme of cooperative blind spectrum sensing based on autocorrelation matrix is proposed. The test statistic is extracted from the autocorrelation matrix of the received signal samples and a bi-threshold hybrid decision scheme is designed for local spectrum sensing. The cognitive radio base station makes a credibility fusion based on the local soft decisions and then takes global fusion combining with the local hard decisions. The proposed method is blind in the sense since it requires no apriori knowledge of the signal and the noise power. Theoretical analysis and computer simulation results show that the proposed method can enhance the spectrum sensing capability.

关键词:

cognitive radio, spectrum sensing, autocorrelation matrix, blind detection

Abstract:

Key words:

cognitive radio, spectrum sensing, autocorrelation matrix, blind detection

中图分类号:

TN92

参考文献

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Cooperative blind spectrum sensing using autocorrelation matrix

Cooperative blind spectrum sensing using autocorrelation matrix

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