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Robust Spectrum Sensing for Noncircular Signal in Multiantenna Cognitive Receivers
2015
IEEE Transactions on Signal Processing
Although noncircular (NC) signals are frequently encountered in wireless communications, their statistical property has not yet been utilized in state-of-the-art methods for spectrum sensing. In this paper, a variant of Hadamard (HDM) ratio test is devised to exploit the NC property of the primary signals for spectrum sensing, which is named the NC-HDM algorithm. As the NC-HDM approach is able to exploit full statistical property of the NC signals and handle deviations from independent and
doi:10.1109/tsp.2014.2371776
fatcat:cxszmueewjbbzeoy55nj7i56zu