Abstract
Aiming at the problem of time-varying channel and perceptual delay in multi-primary users environment, a spectrum sensing method in multi-primary users environment is proposed. The method combines the primary user state, fading channel gain and unknown perceptual delay, estimates the fading channel gain by the maximum a posteriori probability criterion, and introduces it into the perceptual delay particle filter estimation process, and estimates the primary user state. The result is corrected to give a final estimate. The simulation results show that the proposed method eliminates the uncertainty of the received signal information and improves the correct detection probability of the method to a certain extent in multi-primary users environment.
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Acknowledgment
This work was supported by National Natural Science Fund (Grant No. 61473066), Liaoning Province Natural Science Fund (Grant No. 20170540752), Liaoning Province Doctor Startup Fund (Grant No. 20170520444) and the Support Foundation of Shenyang Jianzhu University (Grant No. 2017034) respectively.
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Gao, Z., Dai, L., Wang, X., Zhao, L., Liu, J. (2021). Spectrum Sensing Method in Multi-primary Users Environment. In: Sugumaran, V., Xu, Z., Zhou, H. (eds) Application of Intelligent Systems in Multi-modal Information Analytics. MMIA 2020. Advances in Intelligent Systems and Computing, vol 1233. Springer, Cham. https://doi.org/10.1007/978-3-030-51431-0_1
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DOI: https://doi.org/10.1007/978-3-030-51431-0_1
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