Novel spatial spectrum based spectrum sensing method for cognitive radio systems

被引：0

作者：

Liu, Yan-Fei ^{[1
]}

Wang, Ying-Xi ^{[1
]}

Lu, Guang-Yue ^{[1
,2
]}

机构：

[1] School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China

[2] Electronics and Information College, Yangtze University, Jingzhou 434023, Hubei, China

来源：

Beijing Gongye Daxue Xuebao/Journal of Beijing University of Technology | 2010年 / 36卷 / SUPPL. 1期

关键词：

Statistical tests - Radio systems - Cognitive systems - Array processing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Spectrum sensing is the key problem for cognitive radio systems. Based on the array signal processing theory, a method based on the analysis of the spatial spectrum (SS) of the received signals is proposed to sense the available spectrum for the cognitive users, by using the PAAR as the test statistic. The new method is free of the noise power uncertainty. Both the simulation and the analytical results show that the proposed method is robust to noise uncertainty, and greatly outperforms the classical energy detection method.

引用

页码：70 / 74