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Studies show that reducing the gap between security services and semantic web is important. In this paper we present an ontology-based access-control (OBAC) to support semantic web service. For that, security ontologies are developed to specify concepts and terms involved in this model. Our proposed access control model is expressive and general with these(More)
Wireless sensor networks consist of a large number of sensors whereas each sensor is equipped with a life-limited battery. Depletion of this energy depends on not only the long-distance communications between the sensors and sink node, but also the active state period length. Power consumption of each sensor is the most important factor that affects the(More)
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