14424 search results - page 223 / 2885 » Modeling Radio Networks |
189
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JCST
2008
15 years 5 months ago
2008
The allocation of bandwidth to unlicensed users, without significantly increasing the interference on the existing licensed users, is a challenge for Ultra Wideband (UWB) networks....
193
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INFOCOM
2012
IEEE
13 years 7 months ago
2012
IEEE
Cognitive radio (CR) techniques improve the spectrum utilization by exploiting temporarily-free frequency bands (i.e., in the time domain). The spectrum utilization can be boosted...
166
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SECON
2007
IEEE
15 years 11 months ago
2007
IEEE
Abstract—While mechanisms exist to instantiate common security functionality such as confidentiality and integrity, little has been done to define a mechanism for identificati...
178
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TPDS
2008
15 years 5 months ago
2008
The localization of sensor nodes is a fundamental problem in sensor networks and can be implemented using powerful and expensive beacons. Beacons, the fewer the better, can acquire...
177
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SENSYS
2004
ACM
15 years 10 months ago
2004
ACM
The enormous potential for wireless sensor networks to make a positive impact on our society has spawned a great deal of research on the topic, and this research is now producing ...