Sciweavers

391 search results - page 40 / 79
» An Adaptive Middleware for Mobile Information Systems
Sort
View
ICC
2007
IEEE
116views Communications» more  ICC 2007»
14 years 1 months ago
Joint Adaptive FDMA/SDMA in Chunk-Based OFDM Systems
—OFDM-FDMA/SDMA is currently considered as the leading transmission strategy for the downlink of beyond 3G mobile radio systems. When channel state information is available at th...
Elena Costa, Ying Zhang, Alberto Totaro
DAIS
2007
13 years 9 months ago
Experiences from Developing a Distributed Context Management System for Enabling Adaptivity
Today, one can observe an ever increasing trend in the use of mobile systems. This change inevitably affects the software running on such devices by necessitating additional functi...
Nearchos Paspallis, Avraam Chimaris, George A. Pap...
EDBT
2009
ACM
158views Database» more  EDBT 2009»
13 years 11 months ago
An approach to detecting relevant updates to cached data using XML and active databases
Client/server information systems use caching techniques to reduce the volume of transmitted data as well as response time and, especially in the case of systems with mobile clien...
Essam Mansour, Hagen Höpfner
ICC
2007
IEEE
145views Communications» more  ICC 2007»
14 years 1 months ago
Adaptive vs. Diversity Transmission for Multiuser MISO Systems with Imperfect CSIT
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...
Frederick K. H. Lee, Mai H. Vu, Arogyaswami Paulra...
ICDCSW
2003
IEEE
14 years 27 days ago
Smart Furniture: Improvising Ubiquitous Hot-Spot Environment
We developed Smart Furniture, which extemporaneously converts the legacy non-smart space into a Smart Hot-spot which consists of computational services. Since the Smart Furniture ...
Masaki Ito, Akiko Iwaya, Masato Saito, Kenichi Nak...