Collaboration is crucial to Wireless Sensor Networks (WSNs) as a result of the typical resource limitations of wireless sensor nodes. In this paper, we present a model of collaborative work for WSNs. This model is called Wireless Sensor Networks Supported Cooperative Work (WSNSCW) and was created for these specific networks. We also present the formalization of some entities of the model and it...

Energy is a scarce resource in wireless field bus systems. Strategies for power saving while coping with the application task are needed. This paper introduces the sendOnDelta-principle known from wired field bus systems. In the context of wireless sensor networks the method is analyzed and conclusions for power saving reserves are drawn.

An Integrated Framework for Wireless Sensor Network

Recently, wireless sensor networks have been widely discussed in many applications. In this paper, we propose a novel 3D emergency service that aims to guide people to safe places when emergencies happen. At normal time, the network is responsible for monitoring the environment. When emergency events are detected, the network can adaptively modify its topology to ensure transportation reliabili...