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Hibernus: sustaining computation during intermittent supply for energy-harvesting systems

Hibernus: sustaining computation during intermittent supply for energy-harvesting systems
Hibernus: sustaining computation during intermittent supply for energy-harvesting systems
A key challenge to the future of energy-harvesting systems is the discontinuous power supply that is often generated. We propose a new approach, Hibernus, which enables computation to be sustained during intermittent supply. The approach has a low energy and time overhead which is achieved by reactively hibernating: saving system state only once, when power is about to be lost, and then sleeping until the supply recovers. We validate the approach experimentally on a processor with FRAM nonvolatile memory, allowing it to reactively hibernate using only energy stored in its decoupling capacitance. When compared to a recently proposed technique, the approach reduces processor time and energy overheads by 76-100% and 49-79% respectively.
1943-0663
15-18
Balsamo, Domenico
9cfdb7ce-3fa9-49a5-b119-77897d6db64d
Weddell, Alex
3d8c4d63-19b1-4072-a779-84d487fd6f03
Merrett, Geoff V.
89b3a696-41de-44c3-89aa-b0aa29f54020
Al-Hashimi, Bashir M.
0b29c671-a6d2-459c-af68-c4614dce3b5d
Brunelli, Davide
0919a9ce-d340-4d61-ac77-94078f4d5e89
Benini, Luca
158d569b-b7d4-4d91-9935-4267ea8fd494
Balsamo, Domenico
9cfdb7ce-3fa9-49a5-b119-77897d6db64d
Weddell, Alex
3d8c4d63-19b1-4072-a779-84d487fd6f03
Merrett, Geoff V.
89b3a696-41de-44c3-89aa-b0aa29f54020
Al-Hashimi, Bashir M.
0b29c671-a6d2-459c-af68-c4614dce3b5d
Brunelli, Davide
0919a9ce-d340-4d61-ac77-94078f4d5e89
Benini, Luca
158d569b-b7d4-4d91-9935-4267ea8fd494

Balsamo, Domenico, Weddell, Alex, Merrett, Geoff V., Al-Hashimi, Bashir M., Brunelli, Davide and Benini, Luca (2015) Hibernus: sustaining computation during intermittent supply for energy-harvesting systems. IEEE Embedded Systems Letters, 7 (1), 15-18. (doi:10.1109/LES.2014.2371494).

Record type: Article

Abstract

A key challenge to the future of energy-harvesting systems is the discontinuous power supply that is often generated. We propose a new approach, Hibernus, which enables computation to be sustained during intermittent supply. The approach has a low energy and time overhead which is achieved by reactively hibernating: saving system state only once, when power is about to be lost, and then sleeping until the supply recovers. We validate the approach experimentally on a processor with FRAM nonvolatile memory, allowing it to reactively hibernate using only energy stored in its decoupling capacitance. When compared to a recently proposed technique, the approach reduces processor time and energy overheads by 76-100% and 49-79% respectively.

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More information

e-pub ahead of print date: 20 November 2014
Published date: March 2015
Additional Information: The underlying data is available from http://dx.doi.org/10.5258/SOTON/389749
Organisations: Electronic & Software Systems, EEE

Identifiers

Local EPrints ID: 371787
URI: http://eprints.soton.ac.uk/id/eprint/371787
ISSN: 1943-0663
PURE UUID: 2ec9f515-57c9-4935-ae33-1326350284d9
ORCID for Alex Weddell: ORCID iD orcid.org/0000-0002-6763-5460
ORCID for Geoff V. Merrett: ORCID iD orcid.org/0000-0003-4980-3894

Catalogue record

Date deposited: 14 Nov 2014 11:35
Last modified: 15 Mar 2024 03:25

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Contributors

Author: Domenico Balsamo
Author: Alex Weddell ORCID iD
Author: Geoff V. Merrett ORCID iD
Author: Bashir M. Al-Hashimi
Author: Davide Brunelli
Author: Luca Benini

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