161 search results - page 6 / 33 » Detection of Small-Scale Primary Users in Cognitive Radio Ne... |
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
The problem of distributed multiuser medium access of a hierarchical cognitive radio network with multiple primary and secondary users is considered. Each primary user has a licen...
CISS
2008
IEEE
15 years 3 months ago
2008
IEEE
Abstract— Quickest detection is applied to frequency spectrum sensing in cognitive radio systems. Distribution change in frequency domain is detected for vacating secondary radio...
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract—Cognitive Radio Networks aim at enhancing spectrum utilization by allowing cognitive devices to opportunistically access vast portions of the spectrum. To reach such amb...
105
click to vote
JSAC
2011
14 years 4 months ago
2011
—Opportunistic spectrum access creates the opening of under-utilized portions of the licensed spectrum for reuse, provided that the transmissions of secondary radios do not cause...
CORR
2010
Springer
14 years 9 months ago
2010
Springer
This paper considers the problem of spectrum sensing in cognitive radio networks when the primary user is using Orthogonal Frequency Division Multiplexing (OFDM). For this we devel...