3333 search results - page 485 / 667 » Optimal Power-Down Strategies |
231
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MOBICOM
2009
ACM
16 years 1 months ago
2009
ACM
In cognitive radio networks (CRNs), spectrum sensing is key to opportunistic spectrum access while preventing any unacceptable interference to primary users’ communications. Alt...
205
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GLOBECOM
2008
IEEE
16 years 1 months ago
2008
IEEE
—In order to fully utilize spectrum, auction-based dynamic spectrum allocation has become a promising approach which allows unlicensed wireless users to lease unused bands from s...
186
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ICASSP
2008
IEEE
16 years 1 months ago
2008
IEEE
This paper discusses the issue of dynamic resource allocation (DRA) in the context of cognitive radio (CR) networks. We present a general framework adopting generalized transmitte...
225
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ICC
2008
IEEE
16 years 1 months ago
2008
IEEE
— 1 In this paper, training-based transmissions over a priori unknown Rayleigh block fading channels are considered. The input signals are assumed to be subject to peak power con...
208
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BIBE
2007
IEEE
16 years 1 months ago
2007
IEEE
-We demonstrate a new algorithm named FlexStem to predict RNA secondary structures with pseudoknots. Our approach is based on the free energy minimization criterion, and utilizes a...