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- W2910750856 abstract "In this paper, we investigate a distributed and heterogeneous cognitive radio network (CRN), comprising of secondary users (SUs) employing either energy detector (ED) or autocorrelation detector (AD) to detect the presence or absence of an orthogonal frequency-division multiplexing (OFDM) based primary user (PU). For the considered heterogeneous cooperative spectrum sensing (CSS), the optimal soft combining rule is derived. The performance of this optimal fusion rule and different hard combining schemes such as OR, AND, and MAJOR- ITY is presented for the case when the noise variance is exactly known. Later, the effect of noise uncertainty is also presented. The proposed heterogeneous CSS is shown to combine the excellent performance of the EDs (when the noise variance is exactly known) and robustness of the ADs to the noise uncertainty." @default.
- W2910750856 created "2019-01-25" @default.
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- W2910750856 date "2018-02-01" @default.
- W2910750856 modified "2023-09-27" @default.
- W2910750856 title "Cooperative Sensing of OFDM Signals using Heterogeneous Sensors" @default.
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- W2910750856 doi "https://doi.org/10.1109/ncc.2018.8600266" @default.
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