ABSTRACT
This chapter describes a sensor data aggregation system using mobile agents for integrated sensor networks. It explains integrated sensor networks, which is a large-scale sensor network integrating some sensor networks. The chapter examines query description for integrated sensor networks. System architectures for integrated sensor networks are of two types: the client–server type and the peer-to-peer (P2P) type. In the P2P-type integrated sensor networks, the gateways are connected with each other using P2P technology. Sensor data collected by the sink node are stored in the database that the gateway has. The gateways have enough capacity of storage and are equipped with external powers. In conventional query descriptions for integrated sensor networks such as those used in IrisNet or global sensor network, the clients must collect the sensor data needed to execute the queries. To make the descriptions of the sensor data aggregation easy, the query description uses declarative description.
