Title :
A spectrum sensing method in cognitive radio based on the third order cyclic cumulant
Author :
Lin, Yingpei ; He, Chen ; Jiang, Lingge ; He, Di
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A spectrum sensing method in cognitive radio (CR) based on the third order cyclic cumulant (TOCC) according to the third order cyclostationarity of the most primary user (PU) signals is proposed in this paper. The binary hypothesis test model and the test statistic are constructed and the explicit formula of the detection probability under a constant false alarm rate (CFAR) is derived exploiting the asymptotic optimal estimation theory. The computational complexity can be decreased greatly by the improved algorithm. Simulation results are presented to illustrate the superior detection performances of the proposed spectrum sensing scheme.
Keywords :
cognitive radio; computational complexity; higher order statistics; radio spectrum management; asymptotic optimal estimation theory; binary hypothesis test; cognitive radio; computational complexity; constant false alarm rate; detection probability; spectrum sensing; third order cyclic cumulant; third order cyclostationarity; Cognitive radio; Computational complexity; Computational fluid dynamics; Detectors; Frequency; Helium; Radio transmitters; Statistical analysis; Statistics; Testing; cognitive radio; spectrum sensing; the third order cyclic cumulant; the third order cyclostationary feature detection;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371428
