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INFOCOM
2012
IEEE
7 years 4 months ago
Combinatorial auction with time-frequency flexibility in cognitive radio networks
—In this paper, we tackle the spectrum allocation problem in cognitive radio (CR) networks with time-frequency flexibility consideration using combinatorial auction. Different f...
Mo Dong, Gaofei Sun, Xinbing Wang, Qian Zhang
INFOCOM
2012
IEEE
7 years 4 months ago
Spectrum trading with insurance in cognitive radio networks
—Market based spectrum trading has been extensively studied to realize efficient spectrum utilization in cognitive radio networks (CRNs). In this paper, we utilize the concept o...
Haiming Jin, Gaofei Sun, Xinbing Wang, Qian Zhang
JSAC
2011
215views more  JSAC 2011»
8 years 8 months ago
Opportunistic Spectrum Sharing Schemes for CDMA-Based Uplink MAC in Cognitive Radio Networks
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
Xi Zhang, Hang Su
ITIIS
2010
79views more  ITIIS 2010»
9 years 1 days ago
HMM-based Adaptive Frequency-Hopping Cognitive Radio System to Reduce Interference Time and to Improve Throughput
Cognitive Radio is an advanced enabling technology for the efficient utilization of vacant spectrum due to its ability to sense the spectrum environment. It is important to determ...
Sung Hwan Shon, Sung Jeen Jang, Jae Moung Kim
INFOCOM
2010
IEEE
9 years 2 days ago
A Secondary Market for Spectrum
—Dynamic spectrum trading amongst small cognitive users is fundamentally different along two axes: temporal variation, and spatial variation of user demand and channel condition....
Hong Xu, Jin Jin, Baochun Li
ICC
2007
IEEE
134views Communications» more  ICC 2007»
9 years 8 months ago
DVB Detector for Cognitive Radio
—Cognitive radio (CR) is seen as one of the revolutionary techniques for future spectrum utilization. The first and probably the most challenging task for CR is to detect/sense t...
Loo Peng Goh, Zhongding Lei, Francois P. S. Chin
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