RESEARCH THEME 01 / DOCTORAL WORK
Queries become graphs of operators. The system decides how to distribute that work across battery-powered sensor nodes.
Wireless sensor networks collect data across many small devices. Sending every reading to a central machine can be expensive in both communication and energy. Curracurrong expresses applications as streams so that some processing can happen inside the network.
The programming environment combines an extensible operator library with placement algorithms. The related operator-migration study explores how placement can adapt when queries and network conditions change.
Software: Practice and Experience, 44(2), pp. 175–199
A programming environment that expresses sensor-network applications as connected stream operators. An extensible operator library supports different applications, while placement algorithms reduce energy use on sensor nodes.
15th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM ’12), pp. 125–134
Studies how stream-processing operators can move between sensor nodes as queries and network conditions change, with energy consumption as the optimisation objective.