Citation
Wenchao Li. "Optimizations of an Application-Level Protocol for Enhanced Dependability in FlexRay". Talk or presentation, 31, March, 2009.

Abstract
FlexRay is an automotive standard for high-speed and reliable communication that is being widely deployed for next generation cars. The protocol has powerful errordetection mechanisms, but its error-management scheme forces a corrupted frame to be dropped without any notification to the transmitter. In this paper, we analyze the feasibility of and propose an optimization approach for an application-level acknowledgement and retransmission scheme for which transmission time is allocated on top of an existing schedule. We formulate the problem as a Mixed Integer Linear Program. The optimization is comprised of two stages. The first stage optimizes a fault tolerance metric; the second improves scheduling by minimizing the latencies of the acknowledgment and retransmission messages. We demonstrate the effectiveness of our approach on a case study based on an experimental vehicle designed at General Motors.

Electronic downloads

• FlexRay%20Presentation.ppt · application/vnd.ms-powerpoint · 13218 kbytes

• HTML

  Wenchao Li. <a
  href="http://chess.eecs.berkeley.edu/pubs/581.html"
  ><i>Optimizations of an Application-Level Protocol
  for Enhanced Dependability in FlexRay</i></a>,
  Talk or presentation,  31, March, 2009.

• Plain text

  Wenchao Li. "Optimizations of an Application-Level
  Protocol for Enhanced Dependability in FlexRay". Talk
  or presentation,  31, March, 2009.

• BibTeX

  @presentation{Li09_OptimizationsOfApplicationLevelProtocolForEnhancedDependability,
      author = {Wenchao Li},
      title = {Optimizations of an Application-Level Protocol for
                Enhanced Dependability in FlexRay},
      day = {31},
      month = {March},
      year = {2009},
      abstract = {FlexRay is an automotive standard for high-speed
                and reliable communication that is being widely
                deployed for next generation cars. The protocol
                has powerful errordetection mechanisms, but its
                error-management scheme forces a corrupted frame
                to be dropped without any notification to the
                transmitter. In this paper, we analyze the
                feasibility of and propose an optimization
                approach for an application-level acknowledgement
                and retransmission scheme for which transmission
                time is allocated on top of an existing schedule.
                We formulate the problem as a Mixed Integer Linear
                Program. The optimization is comprised of two
                stages. The first stage optimizes a fault
                tolerance metric; the second improves scheduling
                by minimizing the latencies of the acknowledgment
                and retransmission messages. We demonstrate the
                effectiveness of our approach on a case study
                based on an experimental vehicle designed at
                General Motors. },
      URL = {http://chess.eecs.berkeley.edu/pubs/581.html}
  }
  

Posted by Hiren Patel on 27 Apr 2009.
Groups: chess
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