Abstract
Cognitive radio (CR) is an innovated solution for the scarcity of spectrum bandwidth. Spectrum sensing is a pivotal process to facilitate CR. Spectrum sensing indicates the availability/absence of the primary user (PU) which helps secondary users (SUs) accessing the spectrum band when it is idle while avoiding any interference. This leads to an efficient use for the spectrum. At a low signal-to-noise ratio (SNR), noise fluctuations (i.e., noise uncertainty) is the main reason for missed detection or false alarm; which results in higher interference. This paper introduces an efficient adaptive detection scheme for CR networks, where Various SUs participate to distinguish inactive spectrum bands; improving the detection’s efficiency and overcoming the interference by decreasing the error probability in spectrum sensing, and overcoming node failure using fusion center technique. Monte Carlo is used to analyze the efficiency of detection under the usage of single, and adaptive double thresholds.
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Elshishtawy, R.M., Eldien, A.S.T., Fouda, M.M., Eldeib, A.H. (2021). Performance Analysis of Spectrum Sensing Thresholding Methods for Cognitive Radio Networks. In: Hassanien, A.E., Slowik, A., Snášel, V., El-Deeb, H., Tolba, F.M. (eds) Proceedings of the International Conference on Advanced Intelligent Systems and Informatics 2020. AISI 2020. Advances in Intelligent Systems and Computing, vol 1261. Springer, Cham. https://doi.org/10.1007/978-3-030-58669-0_43
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