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» An Applicative Module Calculus
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ESWA
2006
78views more  ESWA 2006»
13 years 10 months ago
Subscription fraud prevention in telecommunications using fuzzy rules and neural networks
A system to prevent subscription fraud in fixed telecommunications with high impact on long-distance carriers is proposed. The system consists of a classification module and a pre...
Pablo A. Estévez, Claudio M. Held, Claudio ...
ICIP
2004
IEEE
14 years 12 months ago
Steganalysis of quantization index modulation data hiding
Quantization index modulation (QIM) techniques have been gaining popularity in the data hiding community because of their robustness and information-theoretic optimality against a...
Kenneth Sullivan, Zhiqiang Bi, Upamanyu Madhow, Sh...
ICC
2009
IEEE
141views Communications» more  ICC 2009»
14 years 5 months ago
Differential Space-Time-Frequency Codes for MB-OFDM UWB with Dual Carrier Modulation
Abstract—In a multiple-input multiple-output (MIMO) multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) system, coherent detection where the chann...
Le Chung Tran, Alfred Mertins
ADBIS
2008
Springer
128views Database» more  ADBIS 2008»
14 years 4 months ago
Pylonix: A Database Module for Collaborative Document Management
Abstract. In today’s world, document management plays an increasingly important role. However, there is currently no solution to manage complex documents in an integrated manner....
Christian Tilgner, Dietrich Christopeit, Klaus R. ...
GLOBECOM
2006
IEEE
14 years 4 months ago
Implementation of a Coded Modulation for Deep Space Optical Communications
— We present a field programmable gate array (FPGA) implementation of a turbo-like decoder for a serially concatenated pulse-position modulation (SCPPM) code. NASA developed thi...
Michael K. Cheng, Bruce E. Moision, Jon Hamkins, M...