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- W4385213196 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." @default.
- W4385213196 created "2023-07-25" @default.
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- W4385213196 date "2023-07-01" @default.
- W4385213196 modified "2023-09-25" @default.
- W4385213196 title "Fuzzy Tree Schematic for Spectrum Handoff Reduction in Cognitive Radio Networks" @default.
- W4385213196 doi "https://doi.org/10.12720/jcm.18.7.453-461" @default.
- W4385213196 hasPublicationYear "2023" @default.
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