Publications Till Steinbach in 2013 of type Conference Proceedings (English)

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2013

• Philipp Meyer, Till Steinbach, Franz Korf, and Thomas C. Schmidt. Extending IEEE 802.1 AVB with Time-triggered Scheduling: A Simulation Study of the Coexistence of Synchronous and Asynchronous Traffic. In: 2013 IEEE Vehicular Networking Conference (VNC). Pages 47—54, Piscataway, New Jersey, Dec. 2013, IEEE Press,
  [Abstract], [Fulltext Document (pdf)], [DOI], [IEEE Xplore], [Bibtex]

  In-car networks based on Ethernet are expected to be the first choice for future applications in the domain of info- and entertainment. However, the full benefit of a technologically integrated in-car network will only become rewarding with an Ethernet-based backbone, unifying several automotive domains in a single infrastructure. Today, there is remarkable interest in the IEEE 802.1 Audio/Video Bridging (AVB) protocol suite, that provides end-to-end performance guarantees in Ethernet networks. But for the strict timing requirements of automotive control-traffic, these guarantees are too weak. An extension of Ethernet AVB with synchronous time-triggered traffic can overcome these limitations. In this paper, we investigate the coexistence of synchronous and asynchronous traffic by experimentally adding time-triggered messages to the credit-based shaper of AVB in a straightforward way. Based on simulations and analytical evaluations, we quantify the impact of such integration concepts for a reasonable design range. Our results demonstrate the feasibility of a shaping strategy with concurrent AVB and time-triggered message, but show a significant impact of the schedule design on the asynchronous AVB streams. Based on our findings, we provide recommendations for configurations that can improve end-to-end network performance for in-car applications by over 100 percent

  @InProceedings{   msks-eatts-13,
    author        = {Philipp Meyer AND Till Steinbach AND Franz Korf AND Thomas
                    C. Schmidt},
    title         = {{Extending IEEE 802.1 AVB with Time-triggered Scheduling:
                    A Simulation Study of the Coexistence of Synchronous and
                    Asynchronous Traffic}},
    booktitle     = {2013 IEEE Vehicular Networking Conference (VNC)},
    location      = {Boston, Massachusetts},
    month         = dec,
    year          = 2013,
    pages         = {47--54},
    publisher     = {IEEE Press},
    address       = {Piscataway, New Jersey},
    isbn          = {978-1-4799-2686-2},
    issn          = {2157-9865},
    doi           = {10.1109/VNC.2013.6737589},
    eprinttype    = {ieeexplore},
    eprint        = {6737589},
    abstract      = {In-car networks based on Ethernet are expected to be the
                    first choice for future applications in the domain of info-
                    and entertainment. However, the full benefit of a
                    technologically integrated in-car network will only become
                    rewarding with an Ethernet-based backbone, unifying several
                    automotive domains in a single infrastructure. Today, there
                    is remarkable interest in the IEEE 802.1 Audio/Video
                    Bridging (AVB) protocol suite, that provides end-to-end
                    performance guarantees in Ethernet networks. But for the
                    strict timing requirements of automotive control-traffic,
                    these guarantees are too weak. An extension of Ethernet AVB
                    with synchronous time-triggered traffic can overcome these
                    limitations. In this paper, we investigate the coexistence
                    of synchronous and asynchronous traffic by experimentally
                    adding time-triggered messages to the credit-based shaper
                    of AVB in a straightforward way. Based on simulations and
                    analytical evaluations, we quantify the impact of such
                    integration concepts for a reasonable design range. Our
                    results demonstrate the feasibility of a shaping strategy
                    with concurrent AVB and time-triggered message, but show a
                    significant impact of the schedule design on the
                    asynchronous AVB streams. Based on our findings, we provide
                    recommendations for configurations that can improve
                    end-to-end network performance for in-car applications by
                    over 100 percent},
    langid        = {english}
  }

• Sebastian Meiling, Till Steinbach, Moritz Duge, and Thomas C. Schmidt. Consumer-Oriented Integration of Smart Homes and Smart Grids: A Case for Multicast-Enabled Home Gateways?. In: 3rd IEEE International Conference on Consumer Electronics - Berlin (ICCE-Berlin'13). Pages 279—283, Piscataway, New Jersey, Sep. 2013, IEEE Press,
  [Abstract], [Fulltext Document (pdf)], [DOI], [IEEE Xplore], [Bibtex]

  Smart Home automation is pushing into the consumer market for several years, while at the same time energy companies are working on the deployment of Smart Grids. Although, a key idea is to integrate small energy devices at the consumers site, the potential benefits of Smart Home technologies for Smart Grids remain unused until now. In this work we present a concept for consumer-oriented integration of Smart Home devices into Smart Grid applications using multicast-enabled Home Gateways. A first evaluation using standard consumer hardware confirms general feasibility and performance of our approach.

  @InProceedings{   msds-coish-13,
    author        = {Sebastian Meiling AND Till Steinbach AND Moritz Duge
                    AND Thomas C. Schmidt},
    title         = {{Consumer-Oriented Integration of Smart Homes and Smart
                    Grids: A Case for Multicast-Enabled Home Gateways?}},
    booktitle     = {3rd IEEE International Conference on Consumer Electronics
                    - Berlin (ICCE-Berlin'13)},
    year          = {2013},
    pages         = {279--283},
    month         = sep,
    publisher     = {IEEE Press},
    address       = {Piscataway, New Jersey},
    location      = {Berlin, Germany},
    doi           = {10.1109/ICCE-Berlin.2013.6698009},
    eprinttype    = {ieeexplore},
    eprint        = {6698009},
    abstract      = {Smart Home automation is pushing into the consumer market
                    for several years, while at the same time energy companies
                    are working on the deployment of Smart Grids. Although, a
                    key idea is to integrate small energy devices at the consumers
                    site, the potential benefits of Smart Home technologies for
                    Smart Grids remain unused until now. In this work we present
                    a concept for consumer-oriented integration of Smart Home
                    devices into Smart Grid applications using multicast-enabled
                    Home Gateways. A first evaluation using standard consumer
                    hardware confirms general feasibility and performance of our
                    approach.},
    langid        = {english}
  }

• Stefan Buschmann, Till Steinbach, Franz Korf, and Thomas C. Schmidt. Simulation based Timing Analysis of FlexRay Communication at System Level. In: Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques. Pages 285—290, New York, Mar. 2013, ACM-DL,
  [Abstract], [Fulltext Document (pdf)], [Slides (pdf)], [ACM DL], [Bibtex]

  In modern cars the communication infrastructure consists of different application specific bus systems that are interconnected with each other. Due to the growing complexity of the communication infrastructure, the corresponding timing analysis at system level is currently a hot topic in the automotive industry. FlexRay is a state-of-the-art fieldbus for cars. While FlexRay simulations below system level are already established in automotive tool chains, FlexRay system level simulation is not yet common. This paper focuses on simulation-based timing analyses for FlexRay communication. Based on different scenarios the practical relevance is shown. The performance results promise that our simulation approach is a good building block for the simulation of heterogeneous communication consisting of several bus systems and technologies. An evaluation of the simulation results in comparison with the CANoe network simulator proves the conformance of the implementation with the FlexRay specification.

  @InProceedings{   bsks-stafc-13,
    author        = {Stefan Buschmann AND Till Steinbach AND Franz Korf AND
                    Thomas C. Schmidt},
    title         = {{Simulation based Timing Analysis of FlexRay Communication
                    at System Level}},
    booktitle     = {Proceedings of the 6th International ICST Conference on
                    Simulation Tools and Techniques},
    location      = {Cannes, France},
    month         = mar,
    year          = 2013,
    pages         = {285--290},
    publisher     = {ACM-DL},
    address       = {New York},
    isbn          = {978-1-4503-2464-9},
    eprinttype    = {acmdl},
    eprint        = {2512775},
    abstract      = {In modern cars the communication infrastructure consists
                    of different application specific bus systems that are
                    interconnected with each other. Due to the growing
                    complexity of the communication infrastructure, the
                    corresponding timing analysis at system level is currently
                    a hot topic in the automotive industry. FlexRay is a
                    state-of-the-art fieldbus for cars. While FlexRay
                    simulations below system level are already established in
                    automotive tool chains, FlexRay system level simulation is
                    not yet common. This paper focuses on simulation-based
                    timing analyses for FlexRay communication. Based on
                    different scenarios the practical relevance is shown. The
                    performance results promise that our simulation approach is
                    a good building block for the simulation of heterogeneous
                    communication consisting of several bus systems and
                    technologies. An evaluation of the simulation results in
                    comparison with the CANoe network simulator proves the
                    conformance of the implementation with the FlexRay
                    specification.},
    langid        = {english}
  }

• Oleg Karfich, Florian Bartols, Till Steinbach, Franz Korf, and Thomas C. Schmidt. A Hardware/Software Platform for Real-time Ethernet Cluster Simulation in OMNeT++. In: Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques. Pages 334—337, New York, Mar. 2013, ACM-DL,
  [Abstract], [Fulltext Document (pdf)], [Poster (pdf)], [Slides (pdf)], [ACM DL], [Bibtex]

  Cluster simulation is a popular method for supporting system integration in various distributed applications by simulating the environment of a subsystem under test. Particularly in real-time systems, the timing requirements of transmission and reception must be fulfilled, which is not easy to achieve. In this paper, we contribute a scheme for cluster simulation of real-time Ethernet (RTEthernet) based distributed systems. It relies on the discrete event-based simulation framework OMNeT++, interconnected with an ARM-based co-processor. Our approach allows coupling a real-world RTEthernet subsystem with virtual components running in the discrete simulation, that realise the required behaviour for the subsystem. We have evaluated the performance limits of our approach regarding latency and jitter, when running the simulation on a Linux system with the real-time Kernel patch. The results show that the timing requirements for the cluster simulation of small RTEthernet networks can be achieved.

  @InProceedings{   ksbks-hspre-13,
    ids           = {ksbks-eifre-13},
    author        = {Oleg Karfich AND Florian Bartols AND Till Steinbach AND
                    Franz Korf AND Thomas C. Schmidt},
    title         = {{A Hardware/Software Platform for Real-time Ethernet
                    Cluster Simulation in OMNeT++}},
    booktitle     = {Proceedings of the 6th International ICST Conference on
                    Simulation Tools and Techniques},
    location      = {Cannes, France},
    month         = mar,
    year          = 2013,
    pages         = {334--337},
    publisher     = {ACM-DL},
    address       = {New York},
    isbn          = {978-1-4503-2464-9},
    eprinttype    = {acmdl},
    eprint        = {2512782},
    abstract      = {Cluster simulation is a popular method for supporting
                    system integration in various distributed applications by
                    simulating the environment of a subsystem under test.
                    Particularly in real-time systems, the timing requirements
                    of transmission and reception must be fulfilled, which is
                    not easy to achieve. In this paper, we contribute a scheme
                    for cluster simulation of real-time Ethernet (RTEthernet)
                    based distributed systems. It relies on the discrete
                    event-based simulation framework OMNeT++, interconnected
                    with an ARM-based co-processor. Our approach allows
                    coupling a real-world RTEthernet subsystem with virtual
                    components running in the discrete simulation, that realise
                    the required behaviour for the subsystem. We have evaluated
                    the performance limits of our approach regarding latency
                    and jitter, when running the simulation on a Linux system
                    with the real-time Kernel patch. The results show that the
                    timing requirements for the cluster simulation of small
                    RTEthernet networks can be achieved.},
    langid        = {english}
  }

• Sebastian Meiling, Till Steinbach, Thomas C. Schmidt, and Matthias Wählisch. A Scalable Communication Infrastructure for Smart Grid Applications using Multicast over Public Networks. In: Proceedings of the ACM Symposium on Applied Computing (SAC'13), Poster Session. New York, Mar. 2013, ACM-DL,
  [Abstract], [Fulltext Document (pdf)], [DOI], [ACM DL], [Bibtex]

  The transition to regenerative energy resources paves the path from a small number of large power plants to a grid of highly distributed, heterogeneous small generators. To establish a Smart Grid it requires a scalable machine-to-machine communication that allows to control and coordinate millions of energy producing and consuming devices. In this work we contribute a future deployment concept of a scalable communication infrastructure for Smart Grids. Our proposal is based on group communication utilizing hybrid multicast over public networks. We show by real-world measurements that our approach achieves high scalability while also limiting end-to-end communication delay.

  @InProceedings{   mssw-scisg-13,
    author        = {Sebastian Meiling AND Till Steinbach AND Thomas C. Schmidt 
                    AND Matthias W{\"a}hlisch},
    title         = {{A Scalable Communication Infrastructure for Smart Grid
                    Applications using Multicast over Public Networks}},
    booktitle     = {Proceedings of the ACM Symposium on Applied Computing
                    (SAC'13), Poster Session},
    year          = 2013,
    month         = mar,
    publisher     = {ACM-DL},
    address       = {New York},
    location      = {Coimbra, Portugal},
    doi           = {10.1145/2480362.2480495},
    eprinttype    = {acmdl},
    eprint        = {2480495},
    abstract      = {The transition to regenerative energy resources paves the
                    path from a small number of large power plants to a grid of
                    highly distributed, heterogeneous small generators. To establish
                    a Smart Grid it requires a scalable machine-to-machine
                    communication that allows to control and coordinate millions of
                    energy producing and consuming devices. In this work we contribute
                    a future deployment concept of a scalable communication
                    infrastructure for Smart Grids. Our proposal is based on group
                    communication utilizing hybrid multicast over public networks. We
                    show by real-world measurements that our approach achieves high
                    scalability while also limiting end-to-end communication delay.},
    langid        = {english}
  }

• Lazar T. Todorov, Till Steinbach, Franz Korf, and Thomas C. Schmidt. Evaluating Requirements of High Precision Time Synchronisation Protocols using Simulation. In: Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques. Pages 307—313, New York, Mar. 2013, ACM-DL,
  [Abstract], [Fulltext Document (pdf)], [Slides (pdf)], [ACM DL], [Bibtex]

  High precision time synchronisation protocols are used in distributed real-time systems such as trains, planes, cars or industrial installations. In time-triggered systems, with a coordinated time division multiple access media allocation strategy, the achievable precision of time synchronisation among sending participants determines the quality of communication and the available bandwidth. The simulation of time synchronisation protocols allows to find problems at the earliest time — in general, during the design and configuration — of a synchronised distributed system. In this work we show a concept for the simulation of distributed real-time synchronisation protocols that uses discrete event-based simulation. Our model for the OMNeT++ Framework is adaptable and thus allows for providing highly accurate results or fast simulations. The precise simulation of a real-time synchronisation protocol usually consumes considerable simulation time. This paper presents an approach to speed up accurate simulation, based on recordings of previous runs. We evaluate typical real-world use cases for the introduced concept by simulating the AS6802 standard for time synchronisation. Our results show that the simulation can help to reduce the effort of determining configuration parameters for clock synchronisation protocols. We further quantify the performance increase of our evolutionary approach.

  @InProceedings{   tsks-erhpt-13,
    author        = {Lazar T. Todorov AND Till Steinbach AND Franz Korf AND
                    Thomas C. Schmidt},
    title         = {{Evaluating Requirements of High Precision Time
                    Synchronisation Protocols using Simulation}},
    booktitle     = {Proceedings of the 6th International ICST Conference on
                    Simulation Tools and Techniques},
    location      = {Cannes, France},
    month         = mar,
    year          = 2013,
    pages         = {307--313},
    publisher     = {ACM-DL},
    address       = {New York},
    isbn          = {978-1-4503-2464-9},
    eprinttype    = {acmdl},
    eprint        = {2512778},
    abstract      = {High precision time synchronisation protocols are used in
                    distributed real-time systems such as trains, planes, cars
                    or industrial installations. In time-triggered systems,
                    with a coordinated time division multiple access media
                    allocation strategy, the achievable precision of time
                    synchronisation among sending participants determines the
                    quality of communication and the available bandwidth. The
                    simulation of time synchronisation protocols allows to find
                    problems at the earliest time -- in general, during the
                    design and configuration -- of a synchronised distributed
                    system. In this work we show a concept for the simulation
                    of distributed real-time synchronisation protocols that
                    uses discrete event-based simulation. Our model for the
                    OMNeT++ Framework is adaptable and thus allows for
                    providing highly accurate results or fast simulations. The
                    precise simulation of a real-time synchronisation protocol
                    usually consumes considerable simulation time. This paper
                    presents an approach to speed up accurate simulation, based
                    on recordings of previous runs. We evaluate typical
                    real-world use cases for the introduced concept by
                    simulating the AS6802 standard for time synchronisation.
                    Our results show that the simulation can help to reduce the
                    effort of determining configuration parameters for clock
                    synchronisation protocols. We further quantify the
                    performance increase of our evolutionary approach.},
    langid        = {english}
  }