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TSP
2010
14 years 4 months ago
Beamforming and rate allocation in MISO cognitive radio networks
We consider decentralized multiantenna cognitive radio networks where the secondary (cognitive) users are granted simultaneous spectrum access along with the license-holding (prima...
Ali Tajer, Narayan Prasad, Xiaodong Wang
ICASSP
2010
IEEE
14 years 9 months ago
An auction-based framework for multimedia streaming over cognitive radio networks
Recently, many works have been proposed in the area of cognitive radio to efficiently utilize the spectrum for data communication. However, little effort has been made in content...
Yan Chen, Yongle Wu, Beibei Wang, K. J. Ray Liu
ICASSP
2008
IEEE
15 years 4 months ago
Utility-based power control for peer-to-peer cognitive radio networks with heterogeneous QoS constraints
Transmit-power control is a critical task in cognitive radio (CR) networks. In the present contribution, adherence to hierarchies between primary and secondary users in a peer-to-...
Nikolaos Gatsis, Antonio G. Marqués, Georgi...
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GLOBECOM
2010
IEEE
14 years 7 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
WCNC
2010
IEEE
14 years 8 months ago
Interference Modeling for Cognitive Radio Networks with Power or Contention Control
—In this paper, we present an interference model for cognitive radio (CR) networks employing power control or contention control scheme. The probability density functions (PDFs) ...
Zengmao Chen, Cheng-Xiang Wang, Xuemin Hong, John ...