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Soft real-time traffic communication in loaded Wireless Mesh Networks
Universidad de Zaragoza, Zaragoza, Spain .
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0001-5590-0784
Universidad de Zaragoza, Zaragoza, Spain .
University of Porto, Porto, Portugal.
2016 (English)In: IEEE International Workshop on Factory Communication Systems - Proceedings, WFCS, 2016, Article number 7496503Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Industrial applications have been shifting towards wireless multi-hop networks in recent years due to their lower cost of deployment and reconfiguration compared with their wired counterparts. These wireless networks usually must support real-time communication to meet the application requirements. For this reason, Wireless Mesh Networks (WMNs) are potential candidates for industrial applications as they support a fixed infrastructure of static nodes for relaying packets. To meet the application demands, we modify the wireless chain network protocol (WICKPro) to support soft real-time traffic in WMNs with chain topologies over IEEE 802.11. We employ tele-operation of mobile robots as our case study, and perform extensive simulation and laboratory experiments. We show that the data delivery ratio is increased up to 42% in a scenario with 7 nodes, when the maximum end-to-end delay tolerated by the application is doubled. This is particularly suited to soft real-time applications that can trade longer delays by higher reliability. Moreover, when compared with a distributed priority-based token-passing protocol (RT-WMP), the lower overhead of WICKPro allows, in an error-free scenario, obtaining a throughput improvement of 33.42% on average.

Place, publisher, year, edition, pages
2016. Article number 7496503
Keyword [en]
chain topology, cyclic scheduling, IEEE 802.11, soft real-time, token passing, Wireless mesh networks, Chains, Mesh generation, Network protocols, Standards, Topology, Wireless mesh networks (WMN), Wireless networks, IEEE 802.11s, Soft real time, MESH networking
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-32531DOI: 10.1109/WFCS.2016.7496503ISI: 000382857300009Scopus ID: 2-s2.0-84982812542ISBN: 9781509023394 (print)OAI: oai:DiVA.org:mdh-32531DiVA: diva2:953621
Conference
12th IEEE World Conference on Factory Communication Systems, WFCS 2016, 3 May 2016 through 6 May 2016
Available from: 2016-08-18 Created: 2016-08-18 Last updated: 2017-09-15Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • Other style
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Language
  • de-DE
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