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The basic energy detector still plays an important role in the extended target detection, with the advantage that it does not depend on any prior knowledge of the observed target. However, for the complex extended target model, the detector's performance has not been adequately studied. This paper will focus on the theoretical detection performance of energy detector for the fluctuating extended target...
The authors investigate the spectral flatness measure (SFM)-based spectrum sensing technique for cognitive radios. This scheme exploits the fact that under Gaussian noise, the noise-only observations have flattened spectrum, i.e. more white, when compared with that of the observations containing the incumbent or primary signal; hence, an increased SFM under the null hypothesis. Under the null hypothesis,...
In cognitive radios, energy detector is often considered for spectrum sensing in the literature. However, its performance deteriorates rapidly when noise power is fluctuating. In order to solve this problem, several autocorrelation based detection methods such as statistical covariances based (CAV) detection method and eigenvalue based (MME) detection method have been proposed. However, CAV detector...
In cognitive radios, energy detector is considered for spectrum sensing in the literature. However, its performance deteriorates rapidly when noise power is fluctuating. In order to solve this problem, this paper proposes a spectrum sensing method based on multiple cumulants. Although cumulant-based detection methods have been extensively studied, they usually consider a single cumulant of a certain...
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