161 search results - page 10 / 33 » Detection of Small-Scale Primary Users in Cognitive Radio Ne... |
CISS
2008
IEEE
15 years 4 months ago
2008
IEEE
Cognitive radio is a desirable technique for secondary users to utilize the spectrum gray space. In order to avoid intolerable interference to primary users, the transmission powe...
TSP
2010
14 years 4 months ago
2010
In this paper, an adaptive cooperation diversity scheme with best-relay selection is proposed for multiple-relay cognitive radio networks to improve the performance of secondary tr...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
Abstract—Temporal Dynamic Spectrum Access (DSA) in Cognitive Radio Networks exploits time gaps between the primary users transmissions. In this work, the fundamental performance ...
MOBICOM
2009
ACM
15 years 4 months ago
2009
ACM
We address the connectivity of large-scale ad hoc cognitive radio networks, where secondary users exploit channels temporarily and locally unused by primary users and the existenc...
TWC
2010
14 years 4 months ago
2010
In this paper, we propose the concept of centralized dynamic spectrum leasing (C-DSL), in which multiple primary users belonging to the same primary system participate in the spect...