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Distributed detection in energy harvesting wireless sensor networks
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0001-6682-6559
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0001-6630-243X
2016 (English)In: European Signal Process. Conf. (EUSIPCO), Aug. 2016, Institute of Electrical and Electronics Engineers (IEEE), 2016Conference paper (Refereed)
Abstract [en]

We consider a decentralized hypothesis testing problem in which several peripheral energy harvesting sensors arearranged in parallel. Each sensor makes a noisy observation of a time varying phenomenon, and sends a message about the present hypothesis towards a fusion center at each time instance t. The fusion center, using the aggregate of the received messages during the time instance t, makes a decision about the state of the present hypothesis. We assume that each sensor is an energy harvesting device and is capable of harvesting all the energy it needs to communicate from its environment. Our contribution is to formulate and analyze the decentralized detection problem when the energy harvesting sensors are allowed to form a long term energy usage policy. Our analysis is based on a queuing-theoretic model for the battery. Then, by using numerical simulations, we show how the resulting performance differs from the energy-unconstrained case.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2016.
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-189862OAI: diva2:949487
European Signal Process. Conf. (EUSIPCO). August 29-Sept. 2, 2016

QC 20160907

Available from: 2016-07-20 Created: 2016-07-20 Last updated: 2016-09-07Bibliographically approved

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