Abstract
The demand for energy and spectrum-efficient, low-cost portable devices has been one of the central focuses of wireless communications development. One technology that promises to deliver new levels of spectral efficiency is cognitive radios. In essence, cognitive radio is a system whereby wireless devices are aware of the spectrum usage and environment around them and are able to make intelligent decisions on how to most efficiently use and share the spectrum with other devices in the wireless network. Cognitive radios were first applied in military applications as a means of providing a two-way jamming-proof radio communications. It has since found its way to commercial applications as a means of more efficiently utilizing the frequency spectrum.
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Fahim, A. (2015). Introduction. In: Radio Frequency Integrated Circuit Design for Cognitive Radio Systems. Springer, Cham. https://doi.org/10.1007/978-3-319-11011-0_1
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DOI: https://doi.org/10.1007/978-3-319-11011-0_1
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