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Managing high loads in WiFi with automatic synchronization and bandwidth control
Universidade Do Porto, Porto, Portugal.
Universidade Do Porto, Porto, Portugal.
Universidade Do Porto, Porto, Portugal.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. Universidade Do Porto, Porto, Portugal.ORCID iD: 0000-0002-9544-3028
2015 (English)In: Proceeding - 2015 IEEE International Conference on Industrial Informatics, INDIN 2015, 2015, 937-942 p.Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Mobile devices in industrial settings became commonplace with different handheld equipment and mobile robots using COTS WiFi interfaces for communication. This growth in the use of the wireless medium increases the potential for overload and consequent long delays and high losses. Traffic segregation with different Quality of Service (QoS) classes can attenuate the problem but does not solve it within each class. In this paper we propose an extension to the Reconfigurable and Adaptive TDMA protocol to cope with generic traffic and improve the performance of highly loaded WiFi networks. We benefit from the self-synchronization feature of the protocol to create disjoint slots without clock synchronization which are then made available to the protocol stack through a TUN/TAP virtual interface. Then we propose a cooperative bandwidth management to adjust the traffic generated by each node through the virtual interface to match the available bandwidth, granting high bandwidth utilization while avoiding overload. We validate our approach with several practical experiments that confirm the capacity to measure and track the actual bandwidth available for communication through the protocol, removing the bandwidth consumed by interference.

Place, publisher, year, edition, pages
2015. 937-942 p.
Keyword [en]
adaptation, overload management, synchronization, TDMA, WiFi, Wireless communication, Bandwidth, Information science, Mobile devices, Quality of service, Wi-Fi, Wireless telecommunication systems, Automatic synchronization, Bandwidth management, Clock Synchronization, Hand-held equipment, Self synchronization, Wireless communications, Time division multiple access
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:mdh:diva-30601DOI: 10.1109/INDIN.2015.7281861ISI: 000380453900137Scopus ID: 2-s2.0-84949504852ISBN: 9781479966493 (print)OAI: oai:DiVA.org:mdh-30601DiVA: diva2:889338
Conference
13th International Conference on Industrial Informatics, INDIN 2015, 22 July 2015 through 24 July 2015
Available from: 2015-12-23 Created: 2015-12-23 Last updated: 2016-09-01Bibliographically approved

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Almeida, Luis

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf