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Dependable real-time communications for systems with integrated wired and wireless connectivity
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. TTTech Computertechnik AG. (Data Communication)ORCID iD: 0000-0001-9226-6241
2024 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

Ensuring reliable and timely data communication between computer systems over the wireless transmission medium has been a widely accepted source of conflict for decades. Although wireless communication over licensed frequencies demonstrates that dependability and timeliness requirements can be met, important application areas such as industrial automation, automotive, avionics or robotics have been restricted to license-free transmission frequencies. In these frequencies, interference from other users must be tolerated, which can jeopardize the communication requirements. In addition, data communication technologies have evolved dramatically since their introduction in office and home environments. The evolution is based on the success of two specific local area network (LAN) technologies: Ethernet and Wi-Fi. This success has shifted the formerly wide range of dependable and real-time capable proprietary wired solutions towards standardized options based on Ethernet such as time sensitive networking (TSN), a step that the wireless counterpart based on Wi-Fi has yet to take. This thesis addresses these limitations and opportunities and attempts to provide a comprehensive overview of how wireless communication can be introduced not only as a replacement for wired solutions, but as a complement to them. The work addresses demanding and critical scenarios where dependability and real-time are required, but where a variety of other, often conflicting, requirements may also apply. The solutions are based on the high-throughput commercial off-the-shelf (COTS) hardware hardware based on Ethernet and Wi-Fi. They are outlined at the medium access control (MAC) level of the communication architecture, as this is important for managing access to communication resources. Dependability enhancement mechanisms are introduced, mainly targeting reliability by applying fault prevention and fault tolerance, utilizing the diversity of communication channels and focusing on communication resource scheduling. The solutions are supported and evaluated by a mixture of analysis methods, computer simulations and hardware implementation to take the state of the art one step further.

Place, publisher, year, edition, pages
Västerås: Mälardalens universitet, 2024.
Series
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 415
National Category
Communication Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:mdh:diva-68033ISBN: 978-91-7485-673-6 (print)OAI: oai:DiVA.org:mdh-68033DiVA, id: diva2:1883054
Public defence
2024-09-26, Pi, Mälardalens universitet, Västerås, 13:14 (English)
Opponent
Supervisors
Available from: 2024-07-10 Created: 2024-07-08 Last updated: 2024-07-10Bibliographically approved

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Gutiérrez Peón, Pablo

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123456 6 of 6
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  • apa
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