SDF — Solar-aware distributed flow in wireless sensor networks | IEEE Conference Publication | IEEE Xplore

SDF — Solar-aware distributed flow in wireless sensor networks


Abstract:

Energy is the most limiting factor in wireless sensor networks. Harvesting solar energy is a feasible solution to overcome the energy-constraint in some applications. It ...Show More

Abstract:

Energy is the most limiting factor in wireless sensor networks. Harvesting solar energy is a feasible solution to overcome the energy-constraint in some applications. It enables a theoretically infinite network lifetime, sustaining a mode of operation termed energy neutral consumption rate. The challenge arises, how can the harvested energy be utilized to maximize the performance of the sensor network. Considering a field monitoring application the performance is measured as the sustained sampling rate of the sensors. Maximizing the sampling rate needs to take the spatio-temporal distribution of load and energy into account, to prevent the over- loading of nodes. In [12] they introduced a optimal, theoretical solution based on perfect global knowledge. In this paper we propose the solar-aware distributed flow (SDF) approach. SDF enables each node to predict the harvested energy, calculate a sustainable flow and control its local neighborhood. Extensive simulations confirmed that SDF achieves over 80% of the theoretical optimum, while introducing negligible overhead. Keywords-Wireless Sensor Networks, Solar Harvesting, Energy Neutral Consumption Rate, Sampling Rate.
Date of Conference: 04-07 October 2011
Date Added to IEEE Xplore: 29 December 2011
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Conference Location: Bonn, Germany

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