Abstract
In the future, the increasing and continuous demand of services anytime and anywhere and, therefore, the mandatory globalization of mobile and wireless communications for next generation networks services will require a more and more efficient use of the scarce radio spectrum resources. The traditional communication systems which imply an a priori association of the frequency band, the service assigned to it and the technology used, need to become much more flexible, efficient and easy-to-use dynamic systems able to cope with the requirements and constraints of the environment and the users. A Cognitive Radio (CR) approach can be considered as a promising and suitable solution to solve this problem. The CR technologies are able to modify this current communication paradigm because they define a system able to sense the electromagnetic environment (spectrum sensing), detect the spectral resources actually occupied in a given temporal interval and in a given location, and use the free bands (holes) for its own communication.
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Del Re, E., Gorni, G., Ronga, L.S., Suffritti, R. (2011). Flexible and Dynamic Use of Spectrum: The Cognitive Radio Approach. In: Prasad, R., Dixit, S., van Nee, R., Ojanpera, T. (eds) Globalization of Mobile and Wireless Communications. Signals and Communication Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0107-6_12
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DOI: https://doi.org/10.1007/978-94-007-0107-6_12
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