Transmission power scheduling for energy harvesting sensor in remote state estimation
Date
2015
Authors
Li, Y.
Quevedo, D.E.
Lau, V.
Dey, S.
Shi, L.
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Conference paper
Citation
IFAC papers online, 2015, vol.19, pp.122-127
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19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 (24 Aug 2014 - 29 Aug 2014 : South Africa)
Abstract
We study remote estimation in a wireless sensor network. Instead of using a conventional battery-powered sensor, a sensor equipped with an energy harvester which can obtain energy from the external environment is utilized. We formulate this problem into an infinite time-horizon Markov decision process and provide the optimal sensor transmission power control strategy. In addition, a sub-optimal strategy which is easier to implement and requires less computation is presented. A numerical example is provided to illustrate the implementation of the sub-optimal policy and evaluation of its estimation performance
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Copyright 2014 IFAC