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TIT
2010
143views Education» more  TIT 2010»
14 years 4 months ago
Asynchronous CDMA systems with random spreading-part I: fundamental limits
Spectral efficiency for asynchronous code division multiple access (CDMA) with random spreading is calculated in the large system limit. We allow for arbitrary chip waveforms and ...
Laura Cottatellucci, Ralf R. Müller, Mé...
TSP
2010
14 years 4 months ago
Low complexity equalization for doubly selective channels modeled by a basis expansion
We propose a novel equalization method for doubly selective wireless channels, whose taps are represented by an arbitrary Basis Expansion Model (BEM). We view such a channel in the...
Tomasz Hrycak, Saptarshi Das, Gerald Matz, Hans G....
EKAW
2008
Springer
14 years 11 months ago
An Analysis of the Origin of Ontology Mismatches on the Semantic Web
Despite the potential of domain ontologies to provide consensual representations of domain-relevant knowledge, the open, distributed and decentralized nature of the Semantic Web me...
Paul R. Smart, Paula C. Engelbrecht
EGITALY
2006
14 years 11 months ago
Easy Access to Huge 3D Models of Works of Art
Automatic shape acquisition technologies evolved rapidly in recent years, and huge mass of 3D data can be easily produced. The high accuracy of range scanning technology makes the...
Marco Callieri, Federico Ponchio, Paolo Cignoni, R...
IJCAI
2003
14 years 11 months ago
Decidability of SHIQ with Complex Role Inclusion Axioms
Motivated by medical terminology applications, we investigate the decidability of the well known expressive DL, SHIQ, extended with role inclusion axioms (RIAs) of the form R ◦ ...
Ian Horrocks, Ulrike Sattler