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A Frame Packing Framework for Control Systems
KTH, School of Information and Communication Technology (ICT).
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Ethernet has become more and more popular in the industrial world. The full duplex standard and the arrival of switches have made this protocol competitive for real-time purposes. In automation systems, a lot of energy is invested to integrate technologies using Ethernet into control systems. Since Ethernet frames have an important payload, and control signals a very small size, monopolizing an Ethernet frame for a single signal is quite inefficient. A solution to reduce this overhead is to allow sending several signals into the same Ethernet frame. This problem, close to the bin packing problem, is NP-hard. With signals having end-to-end deadlines to respect and different periods and release times, this problem becomes even more complex. We propose here to design a communication framework realizing such a frame packing. The challenge is to generate near-optimal solutions in terms of bandwidth utilization while meeting the different real-time constraints related to automation control systems.

Place, publisher, year, edition, pages
2014. , 60 p.
Series
TRITA-ICT-EX, 2014:12
National Category
Computer and Information Science
Identifiers
URN: urn:nbn:se:kth:diva-147614OAI: oai:DiVA.org:kth-147614DiVA: diva2:731024
Subject / course
Electronic- and Computer Systems
Educational program
Master of Science in Engineering - Information and Communication Technology
Examiners
Available from: 2014-06-30 Created: 2014-06-30 Last updated: 2014-06-30Bibliographically approved

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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