Literature Database Entry

raffeck2024woca

Phillip Raffeck, Johannes Maier and Peter Wägemann, "WoCA: Avoiding Intermittent Execution in Embedded Systems by Worst-Case Analyses with Device States," Proceedings of 25th ACM SIGPLAN/SIGBED International Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES 2024), Copenhagen, Denmark, June 2024, pp. 83–94.

Abstract

Embedded systems with intermittent energy supply can revolutionize the Internet of Things, as they are energy self-sufficient due to energy harvesting. Existing intermittent-computing approaches, running directly from non-volatile memory, allow incremental progress of machine-code instructions. However, this progress does not apply to many devices (e.g., transceivers) having transactional (i.e., all-or-nothing) semantics: Power failures during transactions lead to starvation when frequently experiencing failed attempts. We introduce WoCA, an approach that exploits static, whole-system worst-case analysis for device-driven intermittent computing. With the currently available energy, WoCA enables transactional device uses and guarantees forward progress. WoCA's novel static analysis tracks program-path-sensitive device states and transitions to yield energy bounds. With these bounds, WoCA's runtime decides when to safely execute code between checkpoints. Using WoCA's hardware platform, we validate that WoCA makes more efficient use of available energy compared to worst-case-agnostic approaches, while also giving runtime guarantees.

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Phillip Raffeck
Johannes Maier
Peter Wägemann

BibTeX reference

@inproceedings{raffeck2024woca,
    author = {Raffeck, Phillip and Maier, Johannes and W{\"{a}}gemann, Peter},
    doi = {10.1145/3652032.3657569},
    title = {{WoCA: Avoiding Intermittent Execution in Embedded Systems by Worst-Case Analyses with Device States}},
    pages = {83--94},
    publisher = {ACM},
    address = {Copenhagen, Denmark},
    booktitle = {25th ACM SIGPLAN/SIGBED International Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES 2024)},
    month = {6},
    year = {2024},
   }
   
   

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Last modified: 2026-04-30