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Adaptive energy budgeting for atomic operations in intermittently-powered systems

Adaptive energy budgeting for atomic operations in intermittently-powered systems
Adaptive energy budgeting for atomic operations in intermittently-powered systems
Intermittently-powered energy-harvesting systems offer the potential to form a long-lasting and environmentally friendly Internet of Things. Atomic operations in such systems refer to those that should be executed without interruption, e.g. wireless transmission; if interrupted by power loss, they must restart rather than resume from the interrupted point. State-of-the-art approaches handle atomic operations by either taking a checkpoint before the operation, or ensuring sufficient energy is buffered through design-time profiling of the required energy. Such approaches become inefficient or fail if energy consumption or storage changes, e.g. due to aging or environmental factors. This paper proposes a method for online profiling of energy budgets for atomic operations, enabling intermittent systems to adapt to changes in environment or system conditions. We show that an existing approach fails if capacitance drops by 66%, whereas our approach successfully adapts to changes and ensures atomicity as long as the required energy can be stored.
82-83
ACM
Zhan, Jie
f9606cb9-4a11-4191-9ee4-3aabc524482b
Weddell, Alexander
3d8c4d63-19b1-4072-a779-84d487fd6f03
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020
Zhan, Jie
f9606cb9-4a11-4191-9ee4-3aabc524482b
Weddell, Alexander
3d8c4d63-19b1-4072-a779-84d487fd6f03
Merrett, Geoff
89b3a696-41de-44c3-89aa-b0aa29f54020

Zhan, Jie, Weddell, Alexander and Merrett, Geoff (2020) Adaptive energy budgeting for atomic operations in intermittently-powered systems. In ENSsys '20: Proceedings of the 8th International Workshop on Energy Harvesting and Energy-Neutral Sensing Systems. ACM. pp. 82-83 . (doi:10.1145/3417308.3430277).

Record type: Conference or Workshop Item (Paper)

Abstract

Intermittently-powered energy-harvesting systems offer the potential to form a long-lasting and environmentally friendly Internet of Things. Atomic operations in such systems refer to those that should be executed without interruption, e.g. wireless transmission; if interrupted by power loss, they must restart rather than resume from the interrupted point. State-of-the-art approaches handle atomic operations by either taking a checkpoint before the operation, or ensuring sufficient energy is buffered through design-time profiling of the required energy. Such approaches become inefficient or fail if energy consumption or storage changes, e.g. due to aging or environmental factors. This paper proposes a method for online profiling of energy budgets for atomic operations, enabling intermittent systems to adapt to changes in environment or system conditions. We show that an existing approach fails if capacitance drops by 66%, whereas our approach successfully adapts to changes and ensures atomicity as long as the required energy can be stored.

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Accepted/In Press date: 13 October 2020
Published date: 2020

Identifiers

Local EPrints ID: 444968
URI: http://eprints.soton.ac.uk/id/eprint/444968
PURE UUID: 6384eb1c-6083-47c1-bd0a-7bcdac3e1ab0
ORCID for Alexander Weddell: ORCID iD orcid.org/0000-0002-6763-5460
ORCID for Geoff Merrett: ORCID iD orcid.org/0000-0003-4980-3894

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Date deposited: 13 Nov 2020 17:31
Last modified: 13 Nov 2020 17:31

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Contributors

Author: Jie Zhan
Author: Alexander Weddell ORCID iD
Author: Geoff Merrett ORCID iD

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