193 search results - page 23 / 39 » Dynamic spectrum access policies for cognitive radio |
GLOBECOM
2009
IEEE
13 years 5 months ago
2009
IEEE
Collaborative spectrum sensing in cognitive radio networks has been proposed as an efficient way to improve the performance of primary users detection. In collaborative spectrum se...
ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In Cognitive Radio (CR) systems, spectrum sensing plays a key role to determine the free frequency bands. However, when the primaryuser (PU) signal spectrum exhibits localized fad...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
— As for today, radio spectrum resource is rigidly partitioned for dedicated purposes. The exclusive license of fixed size spectrum blocks separated by guard bands easily solves...
INFOCOM
2010
IEEE
13 years 6 months ago
2010
IEEE
Abstract—The queueing performance of a (secondary) cognitive user is investigated for a hierarchical network where there are N independent and identical primary users. Each prima...
WOWMOM
2005
ACM
14 years 1 months ago
2005
ACM
Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware real-time spectrum allocation [13, 10, 4] show promise of enabling the new para...