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190
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IJSNET
2006
15 years 6 months ago
2006
: To extend the functional lifetime of battery-operated Wireless Sensor Networks (WSNs), stringent sleep scheduling strategies with communication duty cycles running at sub-1% rang...
180
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INFOCOM
2010
IEEE
15 years 5 months ago
2010
IEEE
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...
209
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ICC
2009
IEEE
16 years 1 months ago
2009
IEEE
— 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...
169
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ICC
2009
IEEE
16 years 1 months ago
2009
IEEE
—We have currently reached a phase where big shifts in the network traffic might impose to rethink the design of current architectures, and where new technologies, being pushed ...
144
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ISCC
2009
IEEE
16 years 1 months ago
2009
IEEE
—In this paper we investigate a cooperative mobile network with respect to error performance. Power allocation is applied between source and relay. The relay cooperates after hav...