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» Cognitive Foundations of Probability
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TWC
2008
225views more  TWC 2008»
13 years 8 months ago
Joint rate and power allocation for cognitive radios in dynamic spectrum access environment
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
Dong In Kim, Long Le, Ekram Hossain
INFOCOM
2010
IEEE
13 years 7 months ago
Delay Analysis for Cognitive Radio Networks with Random Access: A Fluid Queue View
Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
Shanshan Wang, Junshan Zhang, Lang Tong
ICC
2009
IEEE
135views Communications» more  ICC 2009»
13 years 6 months ago
Optimal Power Allocation for Cognitive Radio Under Primary User's Outage Loss Constraint
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...
Xin Kang, Rui Zhang, Ying-Chang Liang, Hari Krishn...
JSAC
2011
134views more  JSAC 2011»
13 years 3 months ago
Simple Channel Sensing Order in Cognitive Radio Networks
— In cognitive radio networks (CRNs), effective and efficient channel exploitation is imperative for unlicensed secondary users to seize available network resources and improve ...
Ho Ting Cheng, Weihua Zhuang
ICASSP
2011
IEEE
13 years 12 days ago
Stochastic resource allocation for cognitive radio networks based on imperfect state information
Efficient design of cognitive radio networks calls for secondary users implementing adaptive resource allocation, which requires knowledge of the channel state information in ord...
Antonio G. Marqués, Georgios B. Giannakis, ...