Implementation of an Energy Management Control Strategy for WSNs using the LINC Middleware
Abstract
Energy optimisation in Wireless Sensor Networks (WSNs) is traditionally done either at the sensor node level or at the network level. To obtain even more energy savings , the final application must be considered. Control theory offers promising solutions to tackle this challenge. This paper details an implementation of a control strategy to min-imise energy consumption of a WSN, while ensuring the application Quality of Service (QoS). The application QoS is expressed with the sampling period for sensor nodes and a minimum number of samples that must be available at the application level at each sampling time. With a Model Pre-dictive Control strategy, the lifetime of the WSN is doubled compared to the basic case. The control strategy has been implemented and evaluated on a real test-bed, formed of heterogeneous sensor nodes, thanks to the LINC coordination middleware.
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