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Predictable MAC-level Performance in Low-power Wireless under Interference
University of Mons, Belgium.
RISE, Swedish ICT, SICS, Computer Systems Laboratory. Uppsala University, Sweden.ORCID iD: 0000-0002-2586-8573
RISE, Swedish ICT, SICS, Computer Systems Laboratory. Polytechnic University of Milan, Italy.ORCID iD: 0000-0003-3139-2564
RISE, Swedish ICT, SICS, Computer Systems Laboratory.ORCID iD: 0000-0003-4560-9541
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2016 (English)In: Proceedings of the 2016 International Conference on Embedded Wireless Systems and Networks, 2016, 9, p. 13-22Conference paper, Published paper (Refereed)
Abstract [en]

Predictable performance is key for many WSN applications. Recent efforts use models of the environment, the employed hardware, and protocols to predict network performance. Towards this end, we present an intentionally simple model of ContikiMAC, Contiki’s default MAC layer, targeting worst-case bounds for packet delivery rate and latency. Our experiments reveal problems in the performance of ContikiMAC, which make the protocol perform much worse than predicted, and hence prohibit predictable performance with the current ContikiMAC implementation. We show that the reason for this performance degradation is that ContikiMAC loses phase-lock. To solve this problem, we add fine-grained timing information into the acknowledgment packets. We show that this mechanism solves these problems and enables predictable performance with ContikiMAC even under high external interference.

Place, publisher, year, edition, pages
2016, 9. p. 13-22
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-24534ISBN: 978-0-9949886-0-7 (print)OAI: oai:DiVA.org:ri-24534DiVA, id: diva2:1043618
Conference
International Conference on Embedded Wireless Systems and Networks (EWSN 2016), February 15-17, 2016, Graz, Austria
Projects
RELYonITE-care@HomeAvailable from: 2016-10-31 Created: 2016-10-31 Last updated: 2019-06-25Bibliographically approved

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Voigt, ThiemoTsiftes, NicolasMottola, Luca

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CiteExportLink to record
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  • apa
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Output format
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