169 search results - page 11 / 34 » Opportunistic spectrum access for mobile cognitive radios |
ICC
2008
IEEE
14 years 2 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...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
Vast segments of the frequency spectrum are licensed to specific users for particular applications. These legacy users, however, often under-utilize their designated spectrum seg...
INFOCOM
2012
IEEE
11 years 10 months ago
2012
IEEE
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...
WCNC
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract— We consider a scenario in which frequency agile radios opportunistically share a fixed spectrum resource with a set of primary nodes. We develop a collaborative scheme...
POLICY
2007
Springer
14 years 1 months ago
2007
Springer
Abstract— We present the Cognitive Radio (Policy) Language (CoRaL), a new language for expressing policies that govern the behavior of cognitive radios that opportunistically sha...