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The Electro-Magnetic (EM) spectrum is the lifeblood of wireless communications and services. Accessing the spectrum has become ever-increasingly problematic. This is due to the current practices of frequency management based on pre-planned and static frequency allocation and assignments that can no longer accommodate explosive demands for EM spectrum. Without a paradigm shift in spectrum management, the growth of wireless services to meet demands, whether from commercial, civil, or military interests, will be severely curtailed in the coming years. In particular, spectrum-dependent devices, equipment, and systems will increasingly encounter significant competitive disadvantages, with critical consequences on the authors' war-fighting capability, when accessing the (seemingly or actually) overcrowded EM spectrum upon deployment in the U.S., and more so overseas.
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