After deployment of sensor nodes, the software of sensor nodes usually cannot be changed anymore. Thus, dynamical changing requests to the network and adaptations of the evaluation methods are not possible. This paper presents a service architecture Resource-Aware Service Architecture (RASA) for small, mobile, and resource-critical sensor networks. This architecture features software changes by injecting services at runtime. These services are executed on the sensor nodes. The design of RASA simplifies data aggregation and locally collaboration of sensor nodes. On this way, it is possible to extract implicit information of the network and to adapt the software to dynamically changing processes. Hence, RASA is able to react and to change the network behavior depending on the current conditions.
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