Title
Hibernus: Sustaining Computation During Intermittent Supply for Energy-Harvesting Systems
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.
Year
DOI
Venue
2015
10.1109/LES.2014.2371494
Embedded Systems Letters
Keywords
Field
DocType
microcontrollers,registers,nonvolatile memory,capacitance,embedded software,energy harvesting
Semiconductor memory,Embedded software,Capacitance,Computer science,Decoupling (cosmology),Energy harvesting,Real-time computing,Non-volatile memory,Microcontroller,Computation,Embedded system
Journal
Volume
Issue
ISSN
7
1
1943-0663
Citations 
PageRank 
References 
21
1.10
2
Authors
6
Name
Order
Citations
PageRank
Domenico Balsamo111712.40
Alex S. Weddell222525.00
geoffrey merrett341149.30
Bashir M. Al-Hashimi41339112.57
Davide Brunelli5103893.98
Luca Benini6131161188.49