Sciweavers

170 search results - page 9 / 34
» Cognitive Transmissions with Multiple Relays in Cognitive Ra...
Sort
View
CORR
2011
Springer
245views Education» more  CORR 2011»
14 years 4 months ago
Joint Distributed Access Point Selection and Power Allocation in Cognitive Radio Networks
Spectrum management has been identified as a crucial step towards enabling the technology of the cognitive radio network (CRN). Most of the current works dealing with spectrum ma...
Mingyi Hong, Alfredo Garcia, Jorge Alviar
EJWCN
2011
197views more  EJWCN 2011»
14 years 4 months ago
Comparison among Cognitive Radio Architectures for Spectrum Sensing
Recently, the growing success of new wireless applications and services has led to overcrowded licensed bands, inducing the governmental regulatory agencies to consider more flex...
Luca Bixio, Marina Ottonello, Mirco Raffetto, Carl...
GLOBECOM
2010
IEEE
14 years 7 months ago
The Information Propagation Speed Upper Bound in Cognitive Radio Networks
Abstract--The information propagation speed (IPS) of a network specifies how fast the information can be transmitted in a network. In this paper, we derive an IPS upper bound in co...
Chuan Han, Yaling Yang
TSP
2010
14 years 4 months ago
Sequential and cooperative sensing for multi-channel cognitive radios
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
Seung-Jun Kim, Georgios B. Giannakis
111
Voted
MOBICOM
2009
ACM
15 years 4 months ago
Revenue maximization and distributed power allocation in cognitive radio networks
Cognitive radio is an enabling technology that allows unlicensed users to opportunistically access the spectrum in order to enhance the spectrum efficiency. In this paper, we cons...
Shaolei Ren, Mihaela van der Schaar