Using a class of recently proposed linear scalable space-time codes we demonstrate the tradeoff between spatial multiplexing and transmit diversity for Rayleigh and Ricean flat fading. The codes are able to use jointly transmit diversity in combination with spatial multiplexing, and they achieve spatial and temporal diversity in Rayleigh and Rice fading environments. Frequency diversity of freq...

OF THE DISSERTATION Wireless Networks in Non-Ergodic Multipath Fading: Capacity and Relaying Performance Analysis by Yoav Nebat Doctor of Philosophy in Electrical Engineering (Communication Theory and Systems) University of California, San Diego, 2007 Professor Laurence B. Milstein, Chair Professor Rene L. Cruz, Co-Chair Wireless channels experience random multipath fading. Reliable and efficie...

Marta Maciejewska1, Magdalena Całusińska2, Luc Cornet3, Delphine Adam1, Igor S. Pessi1, Sandrine 5 Malchair4, Philippe Delfosse2, Denis Baurain3, Hazel H. Barton5, Monique Carnol4, and Sébastien 6 Rigali1* 7 8 1 InBioS Centre for Protein Engineering, Institut de Chimie B6a, University of Liège, Liège, Belgium 9 2Environmental Research and Innovation Department, Luxembourg Institute of Science a...

In this paper we propose that adequate treatments of space need to be multiperspectival and related to sound foundational ontologies. To support this, we show that natural spatial descriptions commonly appeal to diverse theories of space and these need to be formally combined to be fully interpreted. Our account draws particularly on the foundational ontology DOLCE and the algebraic specificati...

The identity of patients must be protected when patient data are shared. The two most commonly used models to protect identity of patients are L-diversity and K-anonymity. However, existing work mainly considers data sets with a single sensitive attribute, while patient data often contain multiple sensitive attributes (e.g., diagnosis and treatment). This article shows that although the K-anony...

While small-scale studies show that more diverse native communities are less invasible by exotics, studies at large spatial scales often find positive correlations between native and exotic diversity. This large-scale pattern is thought to arise because landscapes with favorable conditions for native species also have favorable conditions for exotic species. From theory, we proposed an alternat...

The hypothesis that the evolutionary origin of novel behavior patterns may be imprecision in the execution of existing patterns is examined using data from spider web construction behavior. Several aspects of orb construction behavior are both extremely invariable intraspecifically, and highly conserved evolutionarily. The behavior of spiders in the genus Wendilgarda, which build highly modifie...