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TWC
2011
320views more  TWC 2011»
13 years 4 months ago
Cognitive Transmissions with Multiple Relays in Cognitive Radio Networks
In cognitive radio networks, each cognitive transmission process typically requires two phases: the spectrum sensing phase and data transmission phase. In this paper, we investiga...
YuLong Zou, Yu-Dong Yao, Baoyu Zheng
CISS
2007
IEEE
14 years 4 months ago
Bounding A Statistical Measure Of Network Lifetime For Wireless Sensor Networks
—The inherent many-to-one flow of traffic in Wireless Sensor Networks produces a skewed distribution of energy consumption rates leading to the early demise of those sensors that...
Muhammad Usman Ilyas, Hayder Radha
ICC
2007
IEEE
100views Communications» more  ICC 2007»
14 years 4 months ago
Optimal Power Allocation in SVD Equalized Multicarrier Systems
Abstract— Multicarrier transmission is an established technique for radio transmission systems and it can be considered as a promising approach for next generation wireless syste...
Andreas Ahrens, Christoph Lange, Volker Kühn,...
PKDD
2009
Springer
184views Data Mining» more  PKDD 2009»
14 years 2 months ago
Boosting Active Learning to Optimality: A Tractable Monte-Carlo, Billiard-Based Algorithm
Abstract. This paper focuses on Active Learning with a limited number of queries; in application domains such as Numerical Engineering, the size of the training set might be limite...
Philippe Rolet, Michèle Sebag, Olivier Teyt...
ICASSP
2010
IEEE
13 years 10 months ago
Ultrasound tomography with learned dictionaries
We propose a new method for imaging sound speed in breast tissue from measurements obtained by ultrasound tomography (UST) scanners. Given the measurements, our algorithm finds a...
Ivana Tosic, Ivana Jovanovic, Pascal Frossard, Mar...