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Publications in 2011 of type Article, Conference Proceedings and Edited Conference Proceedings

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    2011

    • Kai Müller, Till Steinbach, Franz Korf, and Thomas C. Schmidt. A Real-time Ethernet Prototype Platform for Automotive Applications. In: 2011 IEEE International Conference on Consumer Electronics - Berlin (ICCE-Berlin). Pages 221—225, Piscataway, NJ, USA, Sep. 2011, IEEE Press,
      [Abstract], [Fulltext Document (pdf)], [DOI], [IEEE Xplore], [Bibtex]

      The increasing number of driver assistance, infotainment and entertainment systems in automobiles results in higher requirements for bandwidth, fault tolerance and timing behaviour concerning the in-vehicle communication structure. In future, in-vehicle networks based on current technologies will reach their limits due to insufficient scalability and complexity. Real-time (RT) Ethernet is a new, scalable approach to reduce the complexity of these networks significantly. This paper demonstrates the architecture of a RT Ethernet prototype platform based on an ARM centred system-on-chip, which achieves timing and bandwidth characteristics of a typical future automotive application. It is based on an advanced interrupt driven architecture.

      @InProceedings{   msks-reppa-11,
        author        = {Kai M{\"u}ller AND Till Steinbach AND Franz Korf AND
                        Thomas C. Schmidt},
        title         = {{A Real-time Ethernet Prototype Platform for Automotive
                        Applications}},
        booktitle     = {2011 IEEE International Conference on Consumer Electronics
                        - Berlin (ICCE-Berlin)},
        location      = {Berlin},
        month         = sep,
        year          = 2011,
        pages         = {221--225},
        publisher     = {IEEE Press},
        address       = {Piscataway, NJ, USA},
        isbn          = {978-1-4577-0233-4},
        doi           = {10.1109/ICCE-Berlin.2011.6031866},
        eprinttype    = {ieeexplore},
        eprint        = {6031866},
        abstract      = {The increasing number of driver assistance, infotainment
                        and entertainment systems in automobiles results in higher
                        requirements for bandwidth, fault tolerance and timing
                        behaviour concerning the in-vehicle communication
                        structure. In future, in-vehicle networks based on current
                        technologies will reach their limits due to insufficient
                        scalability and complexity. Real-time (RT) Ethernet is a
                        new, scalable approach to reduce the complexity of these
                        networks significantly. This paper demonstrates the
                        architecture of a RT Ethernet prototype platform based on
                        an ARM centred system-on-chip, which achieves timing and
                        bandwidth characteristics of a typical future automotive
                        application. It is based on an advanced interrupt driven
                        architecture.},
        langid        = {english}
      }
    • Till Steinbach, Franz Korf, and Thomas C. Schmidt. Real-time Ethernet for Automotive Applications: A Solution for Future In-Car Networks. In: 2011 IEEE International Conference on Consumer Electronics - Berlin (ICCE-Berlin). Pages 216—220, Piscataway, NJ, USA, Sep. 2011, IEEE Press,
      [Abstract], [Fulltext Document (pdf)], [DOI], [IEEE Xplore], [Bibtex]

      Data networks of today's automobiles form a complex conglomerate of heterogeneously interconnected components. At the same time, high additional demands for future in-car communication systems are emerging from chassis control, camera based driver assistance and infotainment that cannot be accommodated by established technologies. A new approach towards a flexible highly scalable in-car network is real-time Ethernet. In this paper we discuss the upcoming requirements and argue why current in-car network designs are not suitable for future tasks. By demonstrating how a camera based time-critical driver assistance application can be integrated into a real-time Ethernet based in-car network, we present a typical use case for automotive broadband real-time communication and show application related design and configuration decisions.

      @InProceedings{   sks-reaas-11,
        author        = {Till Steinbach AND Franz Korf AND Thomas C. Schmidt},
        title         = {{Real-time Ethernet for Automotive Applications: A
                        Solution for Future In-Car Networks}},
        booktitle     = {2011 IEEE International Conference on Consumer Electronics
                        - Berlin (ICCE-Berlin)},
        location      = {Berlin},
        month         = sep,
        year          = 2011,
        pages         = {216--220},
        publisher     = {IEEE Press},
        address       = {Piscataway, NJ, USA},
        isbn          = {978-1-4577-0233-4},
        doi           = {10.1109/ICCE-Berlin.2011.6031843},
        eprinttype    = {ieeexplore},
        eprint        = {6031843},
        abstract      = {Data networks of today's automobiles form a complex
                        conglomerate of heterogeneously interconnected components.
                        At the same time, high additional demands for future in-car
                        communication systems are emerging from chassis control,
                        camera based driver assistance and infotainment that cannot
                        be accommodated by established technologies. A new approach
                        towards a flexible highly scalable in-car network is
                        real-time Ethernet. In this paper we discuss the upcoming
                        requirements and argue why current in-car network designs
                        are not suitable for future tasks. By demonstrating how a
                        camera based time-critical driver assistance application
                        can be integrated into a real-time Ethernet based in-car
                        network, we present a typical use case for automotive
                        broadband real-time communication and show application
                        related design and configuration decisions.},
        langid        = {english}
      }
    • Till Steinbach, Franz Korf, and Thomas C. Schmidt. Simulationsbasierte Evaluierung von Metriken in Echtzeit-Ethernet basierten Fahrzeugnetzen. In: 6ter GI/ITG-Workshop Leistungs-, Zuverlässigkeits- und Verlässlichkeitsbewertung von Kommunikationsnetzen und verteilten Systeme (MMBnet 2011). Pages 9—20, Hamburg, Aug. 2011, Universität Hamburg,
      [Abstract], [Fulltext Document (pdf)], [Bibtex]

      Durch die Zunahme von elektronischen Systemen, insbesondere im Fahrerassistenz- und Komfortbereich, kommen die etablierten Automotive-Kommunikationstechnologien an die Grenze ihrer Leistungsfähigkeit. Ein neuer Ansatz für die Kommunikation zwischen Steuergeräten im Automobil ist der Einsatz von Ethernet. Echtzeit-Erweiterungen haben den Einsatzbereich von standard switched Ethernet auf zeitkritische Anwendungen ausgedehnt. Diese Arbeit leistet einen Beitrag zur Bewertung dieser neuen Konzepte, indem eine simulationsbasierte Evaluierungstrategie für die Ermittlung von Kenngrößen (Metriken) Echtzeit- Ethernet-basierter Vermittlungsinfrastrukturen entwickelt wird. Eine gründliche Analyse des Simulationsmodells, welche die Simulationsergebnisse mit Berechnungen eines mathematischen Modells und Messungen auf echter Hardware vergleicht, belegt die Gültigkeit der Implementierung und der mit ihr ermittelten Kenngrößen.

      @InProceedings{   sks-semef-11,
        author        = {Till Steinbach AND Franz Korf AND Thomas C. Schmidt},
        editor        = {Bernd E. Wolfinger AND Klaus-D. Heidtmann},
        title         = {{Simulationsbasierte Evaluierung von Metriken in
                        Echtzeit-Ethernet basierten Fahrzeugnetzen}},
        booktitle     = {6ter GI/ITG-Workshop Leistungs-, Zuverl{\"a}ssigkeits- und
                        Verl{\"a}sslichkeitsbewertung von Kommunikationsnetzen und
                        verteilten Systeme (MMBnet 2011)},
        location      = {Hamburg},
        month         = aug,
        year          = 2011,
        pages         = {9--20},
        publisher     = {Universit{\"a}t Hamburg},
        address       = {Hamburg},
        abstract      = {Durch die Zunahme von elektronischen Systemen,
                        insbesondere im Fahrerassistenz- und Komfortbereich, kommen
                        die etablierten Automotive-Kommunikationstechnologien an
                        die Grenze ihrer Leistungsf{\"a}higkeit. Ein neuer Ansatz
                        f{\"u}r die Kommunikation zwischen Steuerger{\"a}ten im
                        Automobil ist der Einsatz von Ethernet.
                        Echtzeit-Erweiterungen haben den Einsatzbereich von
                        standard switched Ethernet auf zeitkritische Anwendungen
                        ausgedehnt. Diese Arbeit leistet einen Beitrag zur
                        Bewertung dieser neuen Konzepte, indem eine
                        simulationsbasierte Evaluierungstrategie f{\"u}r die
                        Ermittlung von Kenngr{\"o}{\ss}en (Metriken) Echtzeit-
                        Ethernet-basierter Vermittlungsinfrastrukturen entwickelt
                        wird. Eine gr{\"u}ndliche Analyse des Simulationsmodells,
                        welche die Simulationsergebnisse mit Berechnungen eines
                        mathematischen Modells und Messungen auf echter Hardware
                        vergleicht, belegt die G{\"u}ltigkeit der Implementierung
                        und der mit ihr ermittelten Kenngr{\"o}{\ss}en.},
        langid        = {ngerman}
      }
    • Florian Bartols, Till Steinbach, Franz Korf, and Thomas C. Schmidt. Performance Analysis of Time-Triggered Ether-Networks Using Off-the-Shelf-Components. In: 14th IEEE International Symposium on Object\addslash Component\addslash Service-Oriented Real-Time Distributed Computing Workshops (ISORCW) 2011. Pages 49—56, Piscataway, NJ, USA, Mar. 2011, IEEE Press,
      [Abstract], [Fulltext Document (pdf)], [Slides (pdf)], [DOI], [IEEE Xplore], [Bibtex]

      The performance analysis and validation of distributed real-time systems poses significant challenges due to high accuracy requirements at the measurement tools. A fully synchronized time-scale at ultrafine granularity is not easy to generate. Even though there are several analyzer tools for standard switched Ethernet, these tools cannot be applied in time-triggered networks, since they do not meet the requirements of synchronized packet generation. This paper introduces a low cost and lightweight approach to measure end-to-end latency of time-triggered Ethernet traffic with off-the-shelf components. By using standard computer hardware and a real-time Linux Kernel, it is shown that measurement can be achieved in a resolution of microseconds. Furthermore, a validation with an Ethernet performance analyzer and a mathematical framework is presented to check the given results.

      @InProceedings{   bsks-pateo-10,
        author        = {Florian Bartols AND Till Steinbach AND Franz Korf AND
                        Thomas C. Schmidt},
        title         = {{Performance Analysis of Time-Triggered Ether-Networks
                        Using Off-the-Shelf-Components}},
        booktitle     = {14th IEEE International Symposium on Object\addslash
                        Component\addslash Service-Oriented Real-Time Distributed
                        Computing Workshops (ISORCW) 2011},
        location      = {Newport Beach},
        month         = mar,
        year          = 2011,
        pages         = {49--56},
        publisher     = {IEEE Press},
        address       = {Piscataway, NJ, USA},
        isbn          = {978-1-4577-0303-4},
        doi           = {10.1109/ISORCW.2011.16},
        eprinttype    = {ieeexplore},
        eprint        = {5753511},
        abstract      = {The performance analysis and validation of distributed
                        real-time systems poses significant challenges due to high
                        accuracy requirements at the measurement tools. A fully
                        synchronized time-scale at ultrafine granularity is not
                        easy to generate. Even though there are several analyzer
                        tools for standard switched Ethernet, these tools cannot be
                        applied in time-triggered networks, since they do not meet
                        the requirements of synchronized packet generation. This
                        paper introduces a low cost and lightweight approach to
                        measure end-to-end latency of time-triggered Ethernet
                        traffic with off-the-shelf components. By using standard
                        computer hardware and a real-time Linux Kernel, it is shown
                        that measurement can be achieved in a resolution of
                        microseconds. Furthermore, a validation with an Ethernet
                        performance analyzer and a mathematical framework is
                        presented to check the given results.},
        langid        = {english}
      }
    • Till Steinbach, Hermand Dieumo Kenfack, Franz Korf, and Thomas C. Schmidt. An Extension of the OMNeT++ INET Framework for Simulating Real-time Ethernet with High Accuracy. In: Proceedings of the 4th International ICST Conference on Simulation Tools and Techniques. Pages 375—382, New York, Mar. 2011, ACM-DL,
      [Abstract], [Fulltext Document (pdf)], [Slides (pdf)], [ACM DL], [Bibtex]

      Real-time extensions to standard switched Ethernet widen the realm of computer networking into the time-critical domain. These technologies have started to establish in process automation, while Ethernet-based communication infrastructures in vehicles are novel and challenged by particularly hard real-time constraints. Simulation tools are of vital importance to explore the technical feasibility and facilitate the distributed process of vehicle infrastructure design. This paper introduces an extension of the OMNeT++ INET framework for simulating real-time Ethernet with high temporal accuracy. Our module implements the TTEthernet protocol, a real-time extension to standard Ethernet that is proposed for standardisation. We present the major implementation aspects of the simulation model and apply our tool to an abstract in-vehicle backbone. A careful evaluation that compares our results with calculations obtained from a mathematical framework, as well as with real-world measurements using TTEthernet hardware shows simulation and reality in good agreement.

      @InProceedings{   sdkks-eifre-11,
        author        = {Till Steinbach AND Hermand {Dieumo Kenfack} AND Franz Korf
                        AND Thomas C. Schmidt},
        title         = {{An Extension of the OMNeT++ INET Framework for Simulating
                        Real-time Ethernet with High Accuracy}},
        booktitle     = {Proceedings of the 4th International ICST Conference on
                        Simulation Tools and Techniques},
        location      = {Barcelona, Spain},
        month         = mar,
        year          = 2011,
        pages         = {375--382},
        publisher     = {ACM-DL},
        address       = {New York},
        isbn          = {978-1-936968-00-8},
        eprinttype    = {acmdl},
        eprint        = {2151120},
        abstract      = {Real-time extensions to standard switched Ethernet widen
                        the realm of computer networking into the time-critical
                        domain. These technologies have started to establish in
                        process automation, while Ethernet-based communication
                        infrastructures in vehicles are novel and challenged by
                        particularly hard real-time constraints. Simulation tools
                        are of vital importance to explore the technical
                        feasibility and facilitate the distributed process of
                        vehicle infrastructure design. This paper introduces an
                        extension of the OMNeT++ INET framework for simulating
                        real-time Ethernet with high temporal accuracy. Our module
                        implements the TTEthernet protocol, a real-time extension
                        to standard Ethernet that is proposed for standardisation.
                        We present the major implementation aspects of the
                        simulation model and apply our tool to an abstract
                        in-vehicle backbone. A careful evaluation that compares our
                        results with calculations obtained from a mathematical
                        framework, as well as with real-world measurements using
                        TTEthernet hardware shows simulation and reality in good
                        agreement.},
        langid        = {english}
      }