Title :
Exponential Weighted Collaborative Spectrum Sensing Based on SNR
Author :
Xue Junxiao ; Li, Li ; Chen Shoukun ; Huang Lihui
Author_Institution :
Dept. of Telecommun. Eng., Shanghai Normal Univ., Shanghai, China
Abstract :
The CR node in depth fading is possible to have serious false alarm or missed when using conventional collaborative spectrum sensing method. These error messages will be fully included in the final collaborative decision, which will seriously affect the performance of collaborative sensing. So, a new exponential weighted collaborative spectrum sensing based on SNR is proposed and studied as a means to combat such effects. Computer simulation results show that this method can reduce the influence of low SNR where we supposing lower than -23dB in the collaborative sensing and outperforms the conventional method.
Keywords :
cognitive radio; fading channels; spread spectrum communication; cognitive radio node; collaborative decision; depth fading; error messages; exponential weighted collaborative spectrum sensing; Cognitive radio; Collaboration; Detectors; Fading; Shadow mapping; Signal to noise ratio;
Conference_Titel :
Multimedia Technology (ICMT), 2010 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4244-7871-2
DOI :
10.1109/ICMULT.2010.5630184
