Sciweavers

175 search results - page 13 / 35
» Adaptive spectrum sensing for agile cognitive radios
Sort
View
GLOBECOM
2010
IEEE
13 years 5 months ago
Optimization of Periodic Channel Sensing by Secondary Users in a Cognitive Radio Network
With the employment of cognitive radio technology, dynamic spectrum management has the potential to solve the underused spectrum problem. In this paper, we introduce and compare tw...
Dongyue Xue, Xinbing Wang, Ekram Hossain
ICASSP
2009
IEEE
14 years 2 months ago
A frequency hopping spread spectrum transmission scheme for uncoordinated cognitive radios
One of the major challenges to cognitive radios is the synchronization of distributed radios onto the same spectrum white spaces which vary in time and space. In this paper, we pr...
Xiaohua Li, Juite Hwu
GLOBECOM
2009
IEEE
13 years 5 months ago
CatchIt: Detect Malicious Nodes in Collaborative Spectrum Sensing
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...
Wenkai Wang, Husheng Li, Yan Sun, Zhu Han
TCOM
2010
159views more  TCOM 2010»
13 years 6 months ago
Evolutionary cooperative spectrum sensing game: how to collaborate?
—Cooperative spectrum sensing has been shown to be able to greatly improve the sensing performance in cognitive radio networks. However, if cognitive users belong to different se...
Beibei Wang, K. J. Ray Liu, T. Charles Clancy
CORR
2011
Springer
245views Education» more  CORR 2011»
13 years 2 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