Spectrum Sensing Based on Combined Eigenvalue and Eigenvector Through Blind Learning
Spectrum Sensing Based on Combined Eigenvalue and Eigenvector Through Blind Learning
复制标题
基于盲学习的特征值和特征向量组合的频谱感知
DOI:
10.1109/lcomm.2018.2842779
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发表时间:
2018-06
期刊:
影响因子:
--
通讯作者:
Youming Li
中科院分区:
文献类型:
--
作者:
Chen Guo;Ming Jin;Qinghua Guo;Youming Li
This letter focuses on exploiting both eigenvalues and eigenvectors for spectrum sensing in cognitive radio. First, we design a blind learning algorithm for obtaining the prior knowledge of the maximum eigenvalue of noises and the leading eigenvector of primary signals by using historical sensing data. Then, we propose a new detector for spectrum sensing by exploiting both the maximum eigenvalue and the leading eigenvector. A theoretical expression for the decision threshold of the proposed detector is derived. Numerical results are provided to validate the theoretical analysis and demonstrate the superior performance of the proposed detector.
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