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Cognitive radio networks are emerging kind of wireless networks with cognitive radio nodes able to have dynamic spectrum access in order to make use more efficiently of the spectrum. The routing problem in such networks is quite complex due to the dynamic nature of the spectral environment where the availability of frequency bands for cognitive radio nodes is opportunistic. In this paper, we propose...
Cognitive radio networks are composed of spectrum-agile devices capable of changing their configurations and transmission parameters on the fly based on their spectral environment. This capability opens up the possibility of designing flexible and dynamic spectrum access strategies with the purpose of opportunistically reusing portions of the spectrum temporarily vacated by licensed primary users...
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