A pr 2 00 8 Eigenvalue based Spectrum Sensing Algorithms for Cognitive Radio ∗

Abstract

Spectrum sensing is a fundamental component is a cognitive radio. In this paper, we propose new sensing methods based on the eigenvalues of the covariance matrix of signals received at the secondary users. In particular, two sensing algorithms are suggested, one is based on the ratio of the maximum eigenvalue to minimum eigenvalue; the other is based on the… (More)

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