199 search results - page 28 / 40 » Multiple antenna spectrum sensing in cognitive radios |
VTC
2010
IEEE
14 years 9 months ago
2010
IEEE
Cognitive radios are devices capable of sensing a large range of frequencies in order to detect the presence of primary networks and reuse their bands when they are not occupied. D...
101
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GLOBECOM
2009
IEEE
14 years 9 months ago
2009
IEEE
Uncertain capacity in newly emerged Cognitive Radio Networks(CRN) renders specific performance analysis for the secondary users (SUs), particularly in the aspects of Qualityof-Serv...
ICC
2008
IEEE
15 years 6 months ago
2008
IEEE
—We consider opportunistic communications over multiple channels where the state (“good” or “bad”) of each channel evolves as independent and identically distributed Mark...
110
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IROS
2008
IEEE
15 years 6 months ago
2008
IEEE
Abstract— We present a novel antenna and system architecture for mobile manipulation based on passive RFID technology operating in the 850MHz-950MHz ultra-high-frequency (UHF) sp...
107
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EJWCN
2010
14 years 6 months ago
2010
A tactical radio network is a radio network in which a transmitter broadcasts the same information to its receivers. In this paper, dynamic spectrum management is studied for multi...