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Context-aware management for sensor networks

The wide field of wireless sensor networks requires that hundreds or even thousands of sensor nodes have to be maintained and configured. With the upcoming initatives such as Smart Home and Internet of Things, we need new mechanism to discover and manage this amount of sensors. In this paper, we describe a middleware architecture that uses context information of sensors to supply a plug-and-play gateway and resource management framework for heterogeneous sensor networks. Our main goals are to minimise the effort for network engineers to configure and maintain the network and supply a unified interface to access the underlying heterogeneous network. Based on the context information such as battery status, routing information, location and radio signal strength the gateway will configure and maintain the sensor network. The sensors are associated to nearby base stations using an approach that is adapted from the 802.11 WLAN association and negotiation mechanism to provide registration and connectivity services for the underlying sensor devices. This abstracted connection layer can be used to integrate the underlying sensor networks into high-level services and applications such as IP-based networks and Web services.