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PIMRC
2010
IEEE
15 years 2 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
TSP
2010
14 years 10 months ago
Estimating multiple frequency-hopping signal parameters via sparse linear regression
Abstract--Frequency hopping (FH) signals have well-documented merits for commercial and military applications due to their near-far resistance and robustness to jamming. Estimating...
Daniele Angelosante, Georgios B. Giannakis, Nichol...
ICIP
2008
IEEE
16 years 5 months ago
Describing low-level image features using the COMM ontology
We present an innovative approach for storing and processing extracted low-level image features based on current Semantic Web technologies. We propose to use the COMM multimedia o...
Carsten Saathoff, Miroslav Vacura, Raphaël Tr...
ICPR
2006
IEEE
16 years 5 months ago
Multi-Subset Selection for Keyword Extraction and Other Prototype Search Tasks Using Feature Selection Algorithms
We present a framework that enables the use of traditional feature selection algorithms in a new context - for building a set of subsets of specified properties. During the course...
Pavel Pudil, Petr Somol
ICPR
2004
IEEE
16 years 5 months ago
Estimation of Distance to Planar Surfaces and Type of Material with Infrared Sensors
This paper proposes a new technique for computing the distance to an unknown planar surface and, at the same time, estimating the material of the surface through the use of low-co...
Miguel Angel García, Agusti Solanas