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Research on application of OFDM technology in cooperative spectrum sensing

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4 Author(s)
Shao Lulu ; Radio Manage. Div., China Electron. Equip. Syst. Eng. Co. Ltd., Beijing, China ; Song Qijun ; Zhang Hongshun ; Zhang Jiaping

Cognitive radio (CR) is viewed as a novel approach for improving utilization of the precious radio spectrum. Spectrum sensing is one of the most important technologies in cognitive radio. A general presentation of OFDM technology and cooperative spectrum sensing are given in the first instance. In order to improve detection probability and reduce equipment complex and computation complex, to combine OFDM technology with the cognitive radio, on top of analyzing the application of OFDM technology in cooperative spectrum sensing, the authors advance collaborative sensing method based on energy detection and OFDM. Simulation and analysis results show that the method can effectively improve detecting spectrum holes probability.

Published in:

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2009 3rd IEEE International Symposium on

Date of Conference:

27-29 Oct. 2009