Title :
Cooperative Spectrum Sensing Approach Based on Stochastic Resonance Energy Detectors Fusion
Author :
He, Di ; Jiang, Lingge
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A cooperative spectrum sensing technique in cognitive radio (CR) networks is proposed in this paper, which is based on the data fusion of different stochastic resonance (SR) energy detectors. Due to the noisy uncertainty in the unpredictable wireless communication channel, the detection performance of the traditional energy detector cannot be guaranteed. By introducing the SR system with different SR noise types, and with the fusion on these SR-based energy detectors, the detection probability can be improved even under low signal-to-noise ratio (SNR) circumstances. Computer simulation results validate the efficiency of the proposed novel cooperative spectrum sensing approach.
Keywords :
cognitive radio; cooperative communication; probability; radio networks; sensor fusion; signal detection; stochastic processes; wireless channels; SNR; SR noise; cognitive radio networks; cooperative spectrum sensing technique; data fusion; detection probability; signal-to-noise ratio; stochastic resonance energy detector; wireless communication channel; Cognitive radio; Computer simulation; Detectors; Signal to noise ratio; Strontium;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5962860
