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GLOBECOM
2010
IEEE
13 years 5 months ago
A Cognitive Transmission Scheme with the Best Relay Selection in Cognitive Radio Networks
In this paper, we propose a cognitive transmission scheme with the best relay selection in a multiple-relay cognitive radio network to improve the secondary transmission performanc...
YuLong Zou, Jia Zhu, Baoyu Zheng, Sulan Tang, Yu-D...
CISS
2010
IEEE
12 years 11 months ago
On performance evaluation of cooperative spectrum sensing in cognitive radio networks
—This paper presents the system level performance evaluation for energy-detection based cooperative spectrum sensing in cognitive radio networks. Three performance criteria are q...
Gang Xiong, Shalinee Kishore, Aylin Yener
TWC
2008
225views more  TWC 2008»
13 years 7 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
ICC
2009
IEEE
139views Communications» more  ICC 2009»
13 years 5 months ago
Impact of Topology and Shadowing on the Outage Probability of Cellular Networks
This paper proposes an analytical study of the shadowing impact on the outage probability in cellular radio networks. We establish that the downlink other-cell interference factor,...
Jean Marc Kelif, Marceau Coupechoux
WCNC
2010
IEEE
13 years 6 months ago
End-To-End HARQ in Cognitive Radio Networks
Abstract—Cognitive radio networks (CRN) may greatly enhance the throughput based on a given bandwidth. CRN has a unique feature, consisting of uni-directional opportunistic wirel...
Weng-Chon Ao, Kwang-Cheng Chen