Suboptimal Approach to Distributed Detection in Cognitive Radio Networks

• Autorzy: Kumari Shweta , Praveena Sirimilla

Identyfikatory

DOI

10.26636/jtit.2021.144720

• Języki publikacji: EN

Abstrakty

EN

In this paper a dynamic spectrum access (DSA) concept is explored for mitigating the paucity of spectral bandwidth in cognitive radio (CR) for opportunistic, dynamic access of the spectrum without any interference. Dynamic spectrum access schemes are proposed for a distributed cognitive radio network consisting of one secondary user (SU) and many primary users (PUs). The SU has to make decisions for accessing PU channels within discrete time slots. The design of sensing and access strategies that govern channel choice in each slot for near-optimal throughput performance of the SU may be formulated as a partially observable Markov decision process (POMDP). Furthermore, it is considered that the SU incurs a cost whenever it switches to a different channel. The switching cost is expressed in terms of delay, packet loss and packet overhead. In this work, the SU access policy based on a myopic approach is proposed and evaluated.

Słowa kluczowe

EN

cognitive radio; distributed detection; energy detector; myopic policy; spectrum sensing

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2021
• Tom: nr 1
• Strony: 32--36
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Kumari Shweta

• Department of Electronics and Communication, Engineering VFSTR, Guntur, A.P., India

autor

Praveena Sirimilla

• Department of Electronics and Communication, Engineering VFSTR, Guntur, A.P., India

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).