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INFOCOM
2010
IEEE
14 years 8 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
WOWMOM
2009
ACM
191views Multimedia» more  WOWMOM 2009»
15 years 4 months ago
Multi-channel spectrum-agile MAC protocol with adaptive load control
Abstract— Spectrum-agile radios, also known as cognitive radios, have a great potential to improve spectrum utilization by enabling dynamic access to the spectrum. A key challeng...
Fan Wang, Marwan Krunz
ICASSP
2011
IEEE
14 years 1 months ago
Optimal transmission strategies for channel capture mitigation in Cognitive Radio Networks
Abstract—Temporal Dynamic Spectrum Access (DSA) in Cognitive Radio Networks exploits time gaps between the primary users transmissions. In this work, the fundamental performance ...
Yingxi Liu, Nikhil Kundargi, Ahmed H. Tewfik
CORR
2011
Springer
181views Education» more  CORR 2011»
14 years 4 months ago
Contract-Based Cooperative Spectrum Sharing
—Providing proper economic incentives is essential for the success of dynamic spectrum sharing. Cooperative spectrum sharing is one effective way to achieve this goal. In coopera...
Lingjie Duan, Lin Gao, Jianwei Huang
TCOM
2010
133views more  TCOM 2010»
14 years 8 months ago
Transmission control in cognitive radio as a Markovian dynamic game: Structural result on randomized threshold policies
Abstract——This paper considers an uplink time division multiple access (TDMA) cognitive radio network where multiple cognitive radios (secondary users) attempt to access a spect...
J. Huang, V. Krishnamurthy