Hibernus: Sustaining Computation during Intermittent Supply for Energy-Harvesting Systems

Balsamo, Domenico, Weddell, Alex, Merrett, Geoff V., Al-Hashimi, Bashir M., Brunelli, Davide and Benini, Luca (2014) Hibernus: Sustaining Computation during Intermittent Supply for Energy-Harvesting Systems IEEE Embedded Systems Letters


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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.

Item Type: Article
Additional Information: The underlying data is available from http://dx.doi.org/10.5258/SOTON/389749
ISSNs: 1943-0663 (print)
Related URLs:
Organisations: Electronic & Software Systems, EEE
ePrint ID: 371787
Date :
Date Event
13 November 2014Published
Date Deposited: 14 Nov 2014 11:35
Last Modified: 22 Feb 2017 11:14
PRiME: Power-efficient, Reliable, Many-core Embedded systems
Funded by: EPSRC (EP/K034448/1)
Led by: Bashir M. Al-Hashimi
13 May 2013 to 12 May 2018
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/371787

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