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Home > Published Issues > 2023 > Volume 18, No. 7, July 2023 >
JCM 2023 Vol.18(7): 453-461
. Doi: 10.12720/jcm.18.7.453-461
. Doi: 10.12720/jcm.18.7.453-461
Fuzzy Tree Schematic for Spectrum Handoff Reduction in Cognitive Radio Networks
Sampurna Dadi Riskiono1,2, Selo Sulistiyo1,*, I Wayan Mustika1
1.Department of Electrical Engineering and Information Technology, Universitas Gadjah Mada, Yogyakarta 55281,
Indonesia
2.Faculty of Engineering and Computer Science, Universitas Teknokrat Indonesia, Lampung 35132, Indonesia
*Correspondence: selo@ugm.ac.id (S.S.)
2.Faculty of Engineering and Computer Science, Universitas Teknokrat Indonesia, Lampung 35132, Indonesia
*Correspondence: selo@ugm.ac.id (S.S.)
Manuscript received September 6, 2022; revised February 15, 2023; accepted February 22, 2023.
Abstract—Spectrum is a limited resource, so it must be used effectively. The fixed spectrum allocation method currently in operation may not sustain the growth in the network access users, which continues to increase over time. Many studies have shown that the spectrum deficiency problem can be solved with cognitive radio network (CRN) technology. CRN allows flexible spectrum utilization. Spectrum handoff is one of the fundamental prerequisites for dynamic spectrum access in cognitive radio networks. The ping-pong effect is one of the problems caused by the frequent occurrence of unnecessary handoff spectrum. So, in CRN, the right handoff decision is needed to avoid the ping-pong effect. The proposed fuzzy system carries the concept of a fuzzy tree that uses two fuzzy inference systems (FIS), which work in two stages, namely FIS-1 and FIS-2. In the early stages, the FIS-1 controls the secondary users (SU) power and prevents interference with the primary users (PU). FIS-2 is used to execute precise spectrum handoff decisions. The test results show that the amount of handoff spectrum has decreased by up to 43 % compared to other methods, which are only 60 %. This results in a decrease of 16.67% from the previous method. Thus, the ping-pong effect can be minimized with the right handoff decisions.
Keywords—spectrum handoff, ping-pong effect, cognitive radio network, fuzzy tree, fuzzy inference system
Cite: Sampurna Dadi Riskiono, Selo Sulistiyo, and I Wayan Mustika, "Fuzzy Tree Schematic for Spectrum Handoff Reduction in Cognitive Radio Networks," Journal of Communications vol. 18, no. 7, pp. 453-461, July 2023.
Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.
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