Dynamic Threshold Energy Detection Technique for Cognitive Radio
نویسنده
چکیده
Spectrum sensing is the main feature of cognitive radio technology. Spectrum sensing gives an idea of detecting the presence of the primary users in a licensed spectrum. The dynamic threshold energy detection is proposed in this paper for the spectrum sensing of Cognitive Radio. The proposed dynamic energy scheme depends on the current state of the primary user. Depending on this, dynamic thresholds are evaluated considering the effect of noise uncertainty. The thresholds evaluated are used to increase the value of Pd and decrease the value of Pfa . The performance of dynamic energy detection technique is optimized against the values of parameters. It is observed that the proposed dynamic energy detection (DED) scheme is better than the classical energy detection (CED) scheme.
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تاریخ انتشار 2016