Teresa L. Rusyn; Timothy J. Riley

Abstract: Even under ideal circumstances, insufficient spectrum is available for assigning a unique band of frequencies to each communication system. In less ideal circumstances, when a communication system experiences outages due to equipment failure or natural or

Keywords: interference; modeling; spectrum sharing; digital modulation; mobile communications; CDMA; WCDMA; 3G; QPSK; OQPSK; HPSK

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Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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