Optimal Voting Rule and Minimization of Total Error Rate in Cooperative Spectrum Sensing for Cognitive Radio Networks

• Autorzy: Ghosh Samit Kumar , Trankatwar Sachin Ravikant , Bachan P.

Identyfikatory

DOI

10.26636/jtit.2021.144420

• Języki publikacji: EN

Abstrakty

EN

In cognitive radio technology, spectrum sensing is essential for detecting spectrum holes which may be allotted to secondary users. In this paper, an optimal voting rule is used for cooperative spectrum sensing while minimizing the total error rate (TER). The proposed spectrum sensing method is more energy-efficient and may be implemented in practice. It is relied upon in an improved energy detector whose utilization depends on the presence or absence of the primary user. Expressions for false alarm and missed detection probabilities are derived in the paper as well. Overall performance is analyzed both for AWGN and Rayleigh fading channels, in the presence of additive white Gaussian noise (AWGN). The optimum voting rule is applied to the cooperative spectrum sensing process in order to identify the optimum number of sensing nodes and the detection threshold. Finally, an energy-efficient spectrum sensing algorithm is proposed, requiring a lower number of cognitive users for a given error bound.

Słowa kluczowe

EN

cognitive radio; energy detection; optimization; spectrum sensing

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2021
• Tom: nr 1
• Strony: 43--50
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Ghosh Samit Kumar

• Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad-500078

• https://orcid.org/0000-0003-2267-7314

autor

Trankatwar Sachin Ravikant

• Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad-500078

• https://orcid.org/0000-0001-5114-2058

autor

Bachan P.

• Department of Electronics and Communication Engineering, GLA University, Mathura Mathura-281 406 (U.P.)

• https://orcid.org/0000-0001-8188-5901

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).