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PVLDB
2010
151views more  PVLDB 2010»
14 years 7 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
SENSYS
2010
ACM
14 years 7 months ago
Enix: a lightweight dynamic operating system for tightly constrained wireless sensor platforms
Enix is a lightweight dynamic operating system for tightly constrained platforms for wireless sensor networks (WSN). Enix provides a cooperative threading model, which is applicab...
Yu-Ting Chen, Ting-Chou Chien, Pai H. Chou
CORR
2010
Springer
171views Education» more  CORR 2010»
14 years 4 months ago
Online Learning in Opportunistic Spectrum Access: A Restless Bandit Approach
We consider an opportunistic spectrum access (OSA) problem where the time-varying condition of each channel (e.g., as a result of random fading or certain primary users' activ...
Cem Tekin, Mingyan Liu
MOBIHOC
2005
ACM
15 years 9 months ago
On the node-scheduling approach to topology control in ad hoc networks
: In this paper, we analyze the node scheduling approach of topology control in the context of reliable packet delivery. In node scheduling, only a minimum set of nodes needed for ...
Budhaditya Deb, Badri Nath
VTC
2007
IEEE
105views Communications» more  VTC 2007»
15 years 3 months ago
Random Beamforming OFDMA for Future Generation Cellular Communication Systems
—This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) as applicable to future generation wireless communica...
Congzheng Han, Angela Doufexi, Simon Armour, Joe M...
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