Abstract
Cognitive radio is regarded as an innovative approach aimed at enhancing the efficient utilization of the valuable natural resource, namely the electromagnetic spectrum for radio communication. Based on principles of SDR, cognitive radio is wireless communication system with intelligence to interpret its environment. It uses "understanding-by-building" approach to learn about its surroundings and adjust to statistical variations in input signals.Providing rock-solid connectivity whenever and wherever it's needed.aiding in effective use of radio spectrum.Spectrum sensing methods are discussed in this abstract. Spectrum sensing requires energy, so keep that in mind. Therefore, our focus centers on energy-efficient spectrum sensing in order to conserve energy during transmissions, taking into account relevant factors. In this context, an efficient model will be proposed for cognitive radio, encompassing both analytical and simulation aspects.
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