Please use this identifier to cite or link to this item: doi:10.22028/D291-36448
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Title: Scheduling periodic and aperiodic tasks with time, energy harvesting and precedence constraints on multi-core systems
Author(s): Goubaa, Aicha
Khalgui, Mohamed
Li, Zhiwu
Frey, Georg
Zhou, MengChu
Language: English
Title: Information sciences : an international journal
Volume: 520
Startpage: 86
Endpage: 104
Publisher/Platform: Elsevier
Year of Publication: 2020
DDC notations: 070 News media, journalism, publishing
Publikation type: Journal Article
Abstract: This paper deals with the real-time scheduling problem of multi-core systems powered by renewable energy harvested from environment. They handle two types of software tasks which are mapped to cores statically and not allowed to migrate. A task can be periodic which may depend on other tasks’ results, or aperiodic which is added to the system to cope with external interruptions. The uncertainty of energy availability in energy harvesting systems makes real-time scheduling more challenging because energy constraints can be violated to ensure real-time performance. A novel scheduling strategy is proposed to effectively compute deadlines allowing for tasks and messages to meet related constraints. This method consists of two phases, (i) the first one defines different time slots each of which is characterized by energy and frequency parameters to cope with the energy availability issue, and (ii) the second one calculates the deadlines ensuring real-time system feasibility by considering the invocation of aperiodic task execution and task precedence constraints. The originality of the current work compared with related studies is that it deals with multi-core, periodic and aperiodic tasks, dependency, energy harvesting, and real-time aspects simultaneously.
DOI of the first publication: 10.1016/j.ins.2019.12.034
URL of the first publication:
Link to this record: urn:nbn:de:bsz:291--ds-364486
ISSN: 0020-0255
Date of registration: 13-Jun-2022
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Systems Engineering
Professorship: NT - Prof. Dr. Georg Frey
Collections:Die Universitätsbibliographie

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