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GLOBECOM
2006
IEEE
14 years 2 months ago
Alamouti Space-Time Coded OFDM Systems in Time- and Frequency-Selective Channels
Abstract— We propose low-complexity equalizers for Alamouti space-time coded orthogonal frequency-division multiplexing (OFDM) systems in time- and frequency-selective channels, ...
Kun Fang, Geert Leus, Luca Rugini
SACMAT
2004
ACM
14 years 1 months ago
Role-based access control in ambient and remote space
In the era of Ubiquitous Computing and world–wide data transfer mobility, as an innovative aspect of professional activities, imposes new and complex problems of mobile and dist...
Horst Wedde, Mario Lischka
DEXA
2006
Springer
138views Database» more  DEXA 2006»
13 years 11 months ago
A Vector Space Model for Semantic Similarity Calculation and OWL Ontology Alignment
Ontology alignment (or matching) is the operation that takes two ontologies and produces a set of semantic correspondences (usually semantic similarities) between some elements of ...
Rubén Tous, Jaime Delgado
AVI
2008
13 years 10 months ago
Users' quest for an optimized representation of a multi-device space
A plethora of reaching techniques, intended for moving objects between locations distant to the user, have recently been proposed and tested. One of the most promising techniques i...
Dzmitry Aliakseyeu, Andrés Lucero, Jean-Ber...
CGF
2004
117views more  CGF 2004»
13 years 7 months ago
Space-Time Hierarchical Radiosity with Clustering and Higher-Order Wavelets
We address in this paper the issue of computing diffuse global illumination solutions for animation sequences. The principal difficulties lie in the computational complexity of gl...
Cyrille Damez, Nicolas Holzschuch, François...