Spectrum Detection for Cognitive Radio Based on Auto-Adaptive Threshold
This paper proposed a cooperative spectrum sensing scheme based on auto-adaptive threshold in multi-user cognitive radio network, which can improve detection performance of cognitive user. According to closed-form expressions of detection probability, we compared the noncooperative scheme with the multi-user cooperative scheme, and compared the auto-adaptive threshold with fixed threshold in terms of detection probability through imitation. Result shown that the detection probability of multi-user cooperative detection is improved greatly compared to traditional noncooperative detection, and auto-adaptive scheme is advantage more than fixed threshold detection.
L. N. Chen and C. Y. Miao, "Spectrum Detection for Cognitive Radio Based on Auto-Adaptive Threshold", Advanced Materials Research, Vol. 187, pp. 614-620, 2011