A novel fast edge detection method in wide-band spectrum sensing

doi:10.7523/j.ucas.2021.0007

Abstract

Abstract: The explosive growth of traffic demand in the era of internet of everything has resulted in the spectrum scarcity, which enabled a rapid development of dynamic spectrum access technologies in cognitive radio (CR). Fast and robust spectrum sensing method is evoked as the base of dynamic access. We optimized a wide-band spectrum sensing method based on energy detection. The optimized method can implement spectrum edge detection and channel state determination fast without any prior information (bandwidth, power spectrum density, etc.). Results show that our method is suitable for the wide-band blind spectrum sensing, and has an acceptable performance in low SNR scenario.

Key words: cognitive radio, spectrum sensing, energy detection, edge detection, channel state determination

CLC Number:

TN929

JIN Shuaichen, MA Hui, TANG Hongying, QIN Ronghua. A novel fast edge detection method in wide-band spectrum sensing[J]. Journal of University of Chinese Academy of Sciences, 2022, 39(6): 809-816.

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