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GLOBECOM
2010
IEEE
8 years 6 months ago
A Graphical Framework for Spectrum Modeling and Decision Making in Cognitive Radio Networks
There are many key problems of decision making related to spectrum occupancies in cognitive radio networks. It is known that there exist correlations of spectrum occupancies in tim...
Husheng Li, Robert C. Qiu
GLOBECOM
2010
IEEE
8 years 6 months ago
Joint Optimization of Spectrum Sensing for Cognitive Radio Networks
Abstract--Cognitive radio networks require fast and reliable spectrum sensing to achieve high network utilization by secondary users. Current optimization approaches to spectrum se...
Ling Luo, Chittabrata Ghosh, Sumit Roy
GLOBECOM
2010
IEEE
8 years 6 months ago
Competitive Spectrum Trading in Dynamic Spectrum Access Markets: A Price War
The concept of dynamic spectrum access (DSA) enables the licensed spectrum to be traded in an open market where the unlicensed users can freely buy and use the available licensed s...
Yi Tan, Shamik Sengupta, K. P. Subbalakshmi
WIOPT
2010
IEEE
8 years 6 months ago
Competitive interference-aware spectrum access in cognitive radio networks
—Cognitive radio networks provide the capability to share the wireless channel with licensed (primary) users in an opportunistic manner. Primary users have a license to operate i...
Jocelyne Elias, Fabio Martignon, Antonio Capone, E...
WCNC
2010
IEEE
8 years 6 months ago
Impact of Secondary Users' Field Size on Spectrum Sharing Opportunities
— Previous works studied the effect of many system parameters on spectrum sharing opportunities where secondary users access the spectrum of primary users. However, a parameter t...
Muhammad Aljuaid, Halim Yanikomeroglu
PKDD
2010
Springer
179views Data Mining» more  PKDD 2010»
8 years 6 months ago
Laplacian Spectrum Learning
Abstract. The eigenspectrum of a graph Laplacian encodes smoothness information over the graph. A natural approach to learning involves transforming the spectrum of a graph Laplaci...
Pannagadatta K. Shivaswamy, Tony Jebara
INFOCOM
2010
IEEE
8 years 6 months ago
Cooperative Boundary Detection for Spectrum Sensing Using Dedicated Wireless Sensor Networks
Abstract—Spectrum sensing is one of the key enabling technologies in Cognitive Radio Networks (CRNs). In CRNs, secondary users (SUs) are allowed to exploit the spectrum opportuni...
Yanyan Yang, Yunhuai Liu, Qian Zhang, Lionel M. Ni
INFOCOM
2010
IEEE
8 years 6 months ago
Cognitive Mobile Virtual Network Operator: Investment and Pricing with Supply Uncertainty
Abstract—This paper presents the first analytical study of optimal investment and pricing decisions of a cognitive mobile virtual network operator (C-MVNO) under spectrum supply...
Lingjie Duan, Jianwei Huang, Biying Shou
TWC
2008
235views more  TWC 2008»
8 years 7 months ago
Optimal spectrum sensing framework for cognitive radio networks
Spectrum sensing is the key enabling technology for cognitive radio networks. The main objective of spectrum sensing is to provide more spectrum access opportunities to cognitive r...
Won-Yeol Lee, Ian F. Akyildiz
MCS
2007
Springer
8 years 8 months ago
SpectrUW: A laboratory for the numerical exploration of spectra of linear operators
Spectra of linear operators play an important role in various aspects of applied mathematics. For all but the simplest operators, the spectrum cannot be determined analytically an...
Bernard Deconinck, Firat Kiyak, John D. Carter, J....
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