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Opportunistic energy trading between co-located energy-harvesting wireless sensor networks

Jiang, Teng, Merrett, Geoff V. and Harris, N.R. (2013) Opportunistic energy trading between co-located energy-harvesting wireless sensor networks At 1st International Workshop on Energy Neutral Sensing Systems, Italy. 11 - 14 Nov 2013.

Record type: Conference or Workshop Item (Paper)


Wireless sensor networks are increasingly using energy harvesting to extend their lifetime and avoid battery replacement. However, ambient energy sources typically exhibit temporal-spatial variation, and complex power management algorithms have been proposed to model and adapt to variation and achieve energy-neutral operation. However, existing algorithms are limited in the scale of spatial variation that they can accommodate, as they are restricted by the physical boundaries of the network. This paper proposes Opportunistic Energy Trading (OET) to overcome this limitation, and allow networks to trade energy to neighbouring networks which may either be heavily energy-constrained or else suffering from a temporary drought of harvested-energy. To show the potential of OET, we present a case study consisting of an energy-constrained battery-powered WSN which neighbours an energy-harvesting WSN. The case study considers a simplified version of OET, whereby the harvesting WSN transfers (i.e. trades for free) its excess energy to the constrained WSN in order to extend its lifetime. The case study is evaluated through simulation, and shows that the lifetime of the energy-constrained network increases by 40% while the effects on the harvesting network can be considered insignificant.

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Published date: 14 November 2013
Venue - Dates: 1st International Workshop on Energy Neutral Sensing Systems, Italy, 2013-11-11 - 2013-11-14
Related URLs:
Organisations: Electronic & Software Systems, EEE


Local EPrints ID: 358591
PURE UUID: 6e5812e0-8311-4578-a71e-d294945193a6
ORCID for Geoff V. Merrett: ORCID iD
ORCID for N.R. Harris: ORCID iD

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Date deposited: 17 Oct 2013 11:59
Last modified: 07 Nov 2017 09:43

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Author: Teng Jiang
Author: Geoff V. Merrett ORCID iD
Author: N.R. Harris ORCID iD

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