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Compressive cyclostationary spectrum sensing with a constant false alarm rate

Arts 0 Rudolf Mathar 0 0 Institute for Theoretical Information Technology, RWTH Aachen University , Kopernikusstra├če 16, 52074 Aachen , Germany 1 Institute for Information Technology, TU Ilmenau , 98684

SNR walls in eigenvalue-based spectrum sensing

Various spectrum sensing approaches have been shown to suffer from a so-called signal-to-noise ratio (SNR)-wall, an SNR value below which a detector cannot perform robustly no matter how many observations are used. Up to now, the eigenvalue-based maximum-minimum-eigenvalue (MME) detector has been a notable exception. For instance, the model uncertainty of imperfect knowledge of...