2845 search results - page 419 / 569 » Constraints over Ontologies |
EDOC
2007
IEEE
14 years 3 months ago
2007
IEEE
There has, in recent years, been growing interest in Model Driven Engineering (MDE), in which models are the primary design artifacts and transformations are applied to these mode...
GLOBECOM
2007
IEEE
14 years 3 months ago
2007
IEEE
— In this paper, we propose a novel channel sounding technique, called the multicarrier direct sequence swept time delay cross-correlation (MC-DS-STDCC), which is designed to min...
GLOBECOM
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— We study transmission schemes for lifetime maximization in wireless sensor networks. Specifically we consider the network where all the sensors observe uncorrelated si...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Key management has long been a challenging problem in wireless Distributed Sensor Networks (DSNs) due to their high security requirements and strict resource constraints. Recen...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...