560 search results - page 65 / 112 » Level-set methods for convex optimization |
143
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TWC
2010
14 years 10 months ago
2010
In this paper, the training sequence design for multiple-input multiple-output (MIMO) orthogonal frequencydivision multiplexing (OFDM) systems under the minimum mean square error (...
145
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TWC
2010
14 years 10 months ago
2010
In this paper, optimal multi-channel cooperative sensing strategies in cognitive radio networks are investigated. A cognitive radio network with multiple potential channels is cons...
147
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ISQED
2008
IEEE
15 years 9 months ago
2008
IEEE
—Power and energy consumption has emerged as the premier and most constraining aspect in modern computational systems. Dynamic Voltage Scheduling (DVS) has been provably one of t...
123
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INFOCOM
2007
IEEE
15 years 9 months ago
2007
IEEE
—We introduce a novel approach to multi-hop routing in wireless networks. Instead of the usual graph description we characterize the network by the packet delivery ratio matrix w...
162
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ICC
2007
IEEE
15 years 7 months ago
2007
IEEE
In this paper, the problem about power control in multiuser cognitive networks is addressed. The scenario we study is a heterogeneous network, where multiple cognitive (without the...