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SIPS
2008
IEEE
9 years 8 months ago
Multi-mode sub-Nyquist rate digital-to-analog conversion for direct waveform synthesis
This paper describes the sub-Nyquist rate digital-to-analog conversion technique for a direct waveform synthesis (DWS) transmitter. IEEE 802.22 TV band Cognitive Radio (CR) transm...
Stanley Yuan-Shih Chen, Nam-Seog Kim, Jan M. Rabae...
ICC
2009
IEEE
325views Communications» more  ICC 2009»
9 years 8 months ago
Modeling and Analysis for Proactive-Decision Spectrum Handoff in Cognitive Radio Networks
— Spectrum handoff occurs when the primary users appear in the licensed band occupied by the secondary users. Spectrum handoff procedures aim to help the secondary users to vacat...
Chung-Wang Wang, Li-Chung Wang
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