Study on nonlinear variable period spectrum detection of cognitive radio

Authors:
Teng Zhijun;Zhao Chunhui
Affiliations:
Department of Information & Communication Engineering, Harbin Engineering University, Harbin, P. R. China and Department of Information Engineering, Northeast Dianli University, Jilin, P. R. China;Department of Information & Communication Engineering, Harbin Engineering University, Harbin, P. R. China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

To improve the detection performance and increase detection efficiency of user recognition and frequency spectrum utilization ratio, the conventional detection method was improved by using detection period that can be adjusted with actual requirement instead of the fixed detection period. In our simulation, the new method increases spectrum access chance of user recognition, reduces lost time of detection and cuts down the cost of detection effectively while protecting primary user against interference.