A Spectrum Sensing Method Based on Gabor Transform for Cognitive Radio

Sensors & Transducers

Huiqin LIU¹  Hong CHEN¹  Bingxin YAN¹  Shubin WANG¹  Yuanyuan BAO¹ 

[1] College of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China;

关键词: Cognitive radio;    Energy detection;    Gabor transform;    Improved.;   

DOI  :  

来源: DOAJ

【 摘 要 】

In order to improve the sensing performance for cognitive radio, this paper proposes a spectrum sensing method based on Gabor transform. Firstly, a continuous-time signal is transformed into a discrete-time signal, then, the discrete-time signal is converted into Gabor transform by over-sampling. Secondly, the Gabor transform coefficient of the discrete-time signal is obtained, and then a module value of the Gabor transform coefficient is computed. Finally, the module value is compared with the preset detection threshold. The simulation results show that the proposed method is better than the energy detection algorithm, especially in low SNR.

【 授权许可】

Unknown