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IEEE/ICACT20250130 Slide.07        [Big Slide]	Oral Presentation
	Thus, we have : The main functions of CR are as follows: Spectrum detection: Detection of spectrum areas available for use, identifying ¡°holes¡± in the spectrum that can be accessed without interfering with primary users. Spectrum management: Several processes are applied to capture the best available frequencies to meet users' communication needs. Spectrum analysis: The results of spectrum sensing are analyzed to estimate spectrum quality, ensuring that the CR system selects high-quality channels for optimal communication. Spectrum decision: This decision is based on a model and on user behavior, as follows: -Decision model required for spectrum access, capable of analyzing spectrum to take into account the multiple needs of secondary users. - Competition and cooperation in a multi-user environment, with each user maximizing his or her own objectives. In a cooperative environment, users work together to achieve a common goal, with possible coordination by a central controller.

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