Adaptive Filter for Energy Predictor in Energy Harvesting Wireless Sensor Networks

Konferenz: ARCS 2013 - 26th International Conference on Architecture of Computing Systems 2013
19.02.2013 - 22.02.2013 in Prague, Czech Republic

Tagungsband: ARCS 2013

Seiten: 4Sprache: EnglischTyp: PDF

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Le, Trong Nhan; Sentieys, Olivier; Berder, Olivier (IRISA/INRIA, University of Rennes 1, 6 rue de Kerampont BP 80518 - 22305 Lannion Cedex, France)
Pegatoquet, Alain; Belleudy, Cecile (LEAT, University of Nice-Sophia Antipolis, CNRS 250, rue de Albert Einstein, 06560, Valbonne, France)

To design an autonomous Wireless Sensor Network (WSN), the harvested energy from environmental sources has been considered as a potential solution for long-term operations. A power manager embedded in the energy harvesting WSNs adapts the power consumption and computation loads according to the harvested energy to obtain a theoretically infinite lifetime. In order to design an effective power manager, it is of prime interest to benefit from an accurate energy predictor to estimate the energy that can be harvested in the near future. In this paper, a low complexity energy predictor using adaptive filter in proposed. Our predictor has a low memory requirement as it is only based on a previous historical harvested energy to estimate the future energy. Simulation results show that our energy predictor using adaptive filter can be applied for both solar and wind energy with an average error less than 15%.