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.
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
March 2015
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), .
(doi:10.1109/LES.2014.2371494).
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.
Text
hibernus.pdf
- Accepted Manuscript
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
Catalogue record
Date deposited: 14 Nov 2014 11:35
Last modified: 15 Mar 2024 03:25
Export record
Altmetrics
Contributors
Author:
Domenico Balsamo
Author:
Alex Weddell
Author:
Geoff V. Merrett
Author:
Bashir M. Al-Hashimi
Author:
Davide Brunelli
Author:
Luca Benini
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics