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TSP
2010
13 years 2 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
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
GLOBECOM
2009
IEEE
14 years 2 months ago
Medium Access Control Signaling for Reliable Spectrum Agile Radios
—We address the problem of collaborative sensing in cognitive radios. In a cognitive radio network, all the nodes may sense the spectrum simultaneously. They should then exchange...
Ehsan Azarnasab, Rong-Rong Chen, Koon Hoo Teo, Zhi...
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
CORR
2010
Springer
174views Education» more  CORR 2010»
13 years 7 months ago
Collaborative Spectrum Sensing from Sparse Observations in Cognitive Radio Networks
Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the implementation of cognitive radio. Collaborative spectrum sensing among the cognitive radio n...
Jia Meng, Wotao Yin, Husheng Li, Ekram Hossain, Zh...