Wideband Spectrum Compressed Blind Sensing without Reconstruction Based on Higher-order Moment

Abstract

Abstract-To improve the detection performance and detection speed of wideband spectrum sensing algorithms with little priori knowledge, a scheme of cooperative wideband compressed blind sensing without reconstruction based on higher-order moment (CWCBS-HOM for short) is proposed. The test statistic is extracted from third-order moment of the compressed samples. The proposed method is blind in the sense since it need neither signal reconstruction, nor the prior knowledge of the primary user (PU) signal. Theoretical analysis and simulation results show that the proposed method can enhance the spectrum sensing capability with low computational complexity and high speed.