Cooperative Sensing Parameter Optimization Based on the Infimum of Cooperative Detection Probability 


Vol. 46,  No. 4, pp. 598-607, Apr.  2021
10.7840/kics.2021.46.4.598


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  Abstract

In practical cognitive radio networks, secondary users at different locations may achieve different probability of detection in general. However, most conventional approaches consider the probability of detection of every secondary user as identical, and thus the protection of primary users would not be satisfied in terms of the probability of detection. In this paper, the infimum of the probability of cooperative detection is suggested as the requirement for protection of primary users and the sensing parameter optimization problem is reformulated based on it. In addition, the adaptive and fixed detection thresholds are provided to cope with the change in the number of secondary users during network operation. Through performance evaluation, we show that the proposed schemes not only guarantee the protection of primary users in terms of the cooperative detection probability, but also induce minimal change in network throughput even when the number of cooperative users varies.

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  Cite this article

[IEEE Style]

J. Choi, M. Seo, S. Um, J. W. Choi, C. Han, "Cooperative Sensing Parameter Optimization Based on the Infimum of Cooperative Detection Probability," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 4, pp. 598-607, 2021. DOI: 10.7840/kics.2021.46.4.598.

[ACM Style]

Jae-Kark Choi, Myunghwan Seo, Soobin Um, Jeung Won Choi, and Chulhee Han. 2021. Cooperative Sensing Parameter Optimization Based on the Infimum of Cooperative Detection Probability. The Journal of Korean Institute of Communications and Information Sciences, 46, 4, (2021), 598-607. DOI: 10.7840/kics.2021.46.4.598.

[KICS Style]

Jae-Kark Choi, Myunghwan Seo, Soobin Um, Jeung Won Choi, Chulhee Han, "Cooperative Sensing Parameter Optimization Based on the Infimum of Cooperative Detection Probability," The Journal of Korean Institute of Communications and Information Sciences, vol. 46, no. 4, pp. 598-607, 4. 2021. (https://doi.org/10.7840/kics.2021.46.4.598)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880