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INFOCOM
2010
IEEE
15 years 4 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
TVCG
2010
176views more  TVCG 2010»
15 years 4 months ago
Evaluation of the Cognitive Effects of Travel Technique in Complex Real and Virtual Environments
—We report a series of experiments conducted to investigate the effects of travel technique on information gathering and cognition in complex virtual environments. In the first e...
Evan A. Suma, Samantha L. Finkelstein, Myra Reid, ...
WICOMM
2010
91views more  WICOMM 2010»
15 years 4 months ago
A sensing-based cognitive coexistence method for interfering infrastructure and ad hoc systems
The rapid proliferation of wireless systems makes interference management more and more important. This paper presents a novel cognitive coexistence framework, which enables an in...
Stefan Geirhofer, Lang Tong, Brian M. Sadler
PIMRC
2010
IEEE
15 years 4 months ago
Opportunistic channel access scheme for cognitive radio system based on residual white space distribution
We propose an opportunistic channel access scheme for cognitive radio-enabled secondary networks. In our work, we model the channel occupancy due to Primary User (PU) activity as a...
Manuj Sharma, Anirudha Sahoo
SECON
2010
IEEE
15 years 4 months ago
A Two-Tier Market for Decentralized Dynamic Spectrum Access in Cognitive Radio Networks
Market mechanisms have been exploited as important means for spectrum acquisition and access in cognitive radio networks. In this paper, we propose a two-tier market for decentrali...
Dan Xu, Xin Liu, Zhu Han