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.
Hibernus: Sustaining Computation during Intermittent Supply for Energy-Harvesting Systems / Balsamo, Domenico; Weddell, Alex S.; Merrett, Geoff V.; Al-Hashimi, Bashir M.; Brunelli, Davide; Benini, Luca. - In: IEEE EMBEDDED SYSTEMS LETTERS. - ISSN 1943-0663. - STAMPA. - 7:1(2015), pp. 15-18. [10.1109/les.2014.2371494]
Titolo: | Hibernus: Sustaining Computation during Intermittent Supply for Energy-Harvesting Systems | |
Autori: | Balsamo, Domenico; Weddell, Alex S.; Merrett, Geoff V.; Al-Hashimi, Bashir M.; Brunelli, Davide; Benini, Luca | |
Autori Unitn: | ||
Titolo del periodico: | IEEE EMBEDDED SYSTEMS LETTERS | |
Anno di pubblicazione: | 2015 | |
Numero e parte del fascicolo: | 1 | |
Codice identificativo Scopus: | 2-s2.0-84924285125 | |
Codice identificativo WOS: | WOS:000219585600005 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/les.2014.2371494 | |
Handle: | http://hdl.handle.net/11572/97929 | |
Citazione: | Hibernus: Sustaining Computation during Intermittent Supply for Energy-Harvesting Systems / Balsamo, Domenico; Weddell, Alex S.; Merrett, Geoff V.; Al-Hashimi, Bashir M.; Brunelli, Davide; Benini, Luca. - In: IEEE EMBEDDED SYSTEMS LETTERS. - ISSN 1943-0663. - STAMPA. - 7:1(2015), pp. 15-18. [10.1109/les.2014.2371494] | |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
Hibernus IEEE.pdf | Versione editoriale (Publisher’s layout) | Tutti i diritti riservati (All rights reserved) | Administrator | |
hibernus.pdf | Post-print referato (Refereed author’s manuscript) | Tutti i diritti riservati (All rights reserved) | Open Access Visualizza/Apri |