Leonie Köhler (née Ahrendts)

Leonie Köhler (née Ahrendts)

Leonie Köhler, geb. Ahrendts

HS 66, Room 1214

+49 531 391 3752

Institute of Computer and Network Engineering Hans-Sommer-Street 66, Braunschweig 38106

Research Activities

In the context of the DFG-project TypicalCPA – Typical Worst Case Compositional Performance Analysis, I look into the formal timing analysis of embedded systems with weakly-hard real-time constraints.

Moreover, I am interested in methods which serve to systematically analyse the behavior of computing systems and communication networks in case of failure.

Publications

The listed material is protected by copyright. The corresponding copyright must be observed.

Kai-Björn Gemlau, Leonie Köhler and Rolf Ernst, "Efficient Run-Time Environments for System-Level LET Programming" in Design, Automation and Test in Europe (DATE), Februar 2021.

@inproceedings{Gemlau2021EfficientRun-TimeEnvironments,

author = {Kai-Björn Gemlau and Leonie Köhler and Rolf Ernst},
booktitle = {Design, Automation and Test in Europe (DATE)},
month = feb,
title = {{Efficient Run-Time Environments for System-Level LET Programming}},
year = {2021}

}

Filename	Size	Type	File description	IDA-Link
Gemlau2021EfficientRun-TimeEnvironments.pdf	1.26 MB	pdf		IDA-Link
Gemlau2021EfficientRun-TimeEnvironments.mp4	25.27 MB	mp4		IDA-Link

Kai-Björn Gemlau, Leonie Köhler and Rolf Ernst, "A Platform Programming Paradigm for Heterogeneous Systems Integration", Proceedings of the IEEE, Januar 2020.

@article{Gemlau2020APlatformProgramming,

author = {Kai-Björn Gemlau and Leonie Köhler and Rolf Ernst},
journal = {Proceedings of the IEEE},
month = jan,
title = {{A Platform Programming Paradigm for Heterogeneous Systems Integration}},
year = {2020}

}

Kai-Björn Gemlau, Leonie Köhler and Rolf Ernst, "System-Level Logical Execution Time: Augmenting the Logical Execution Time Paradigm for Distributed Real-Time Automotive Software", ACM Transactions on Cyber-Physical Systems, Januar 2020.

@article{Gemlau2020System-LevelLogicalExecution,

author = {Kai-Björn Gemlau and Leonie Köhler and Rolf Ernst},
journal = {ACM Transactions on Cyber-Physical Systems},
month = jan,
title = {{System-Level Logical Execution Time: Augmenting the Logical Execution Time Paradigm for Distributed Real-Time Automotive Software}},
year = {2020}

}

Leonie Köhler, Borislav Nikolic, Rolf Ernst and Marc Boyer, "Increasing Accuracy of Timing Models: From CPA to CPA+" in 2019 Design, Automation Test in Europe Conference Exhibition (DATE), pp. 1210-1215, März 2019.

@inproceedings{Köhler2019IncreasingAccuracyof,

author = {Leonie Köhler and Borislav Nikolic and Rolf Ernst and Marc Boyer},
booktitle = {2019 Design, Automation Test in Europe Conference Exhibition (DATE)},
month = 0,
pages = {1210-1215},
title = {{Increasing Accuracy of Timing Models: From CPA to CPA+}},
year = {2019}

}

Leonie Köhler and Rolf Ernst, "Improving a Compositional Timing Analysis Framework for Weakly-Hard Real-Time Systems" in Real-Time and Embedded Technology and Applications Symposium (RTAS), Januar 2019.

@inproceedings{koehler2019improving,

author = {Leonie Köhler and Rolf Ernst},
booktitle = {Real-Time and Embedded Technology and Applications Symposium (RTAS)},
month = jan,
title = {{Improving a Compositional Timing Analysis Framework for Weakly-Hard Real-Time Systems}},
year = {2019}

}

Rolf Ernst, Leonie Köhler and Kai-Björn Gemlau, "System Level LET: Mastering Cause-Effect Chains in Distributed Systems" in 44th Annual Conference of the IEEE Industrial Electronics Society (IECON), Oktober 2018.

@inproceedings{ernst2018system1,

author = {Rolf Ernst and Leonie Köhler and Kai-Björn Gemlau},
booktitle = {44th Annual Conference of the IEEE Industrial Electronics Society (IECON)},
month = oct,
title = {{System Level LET: Mastering Cause-Effect Chains in Distributed Systems}},
year = {2018}

}

Rolf Ernst, Leonie Ahrendts, Kai-Björn Gemlau, Sophie Quinton, Hermann von Hasseln and Julien Hennig, "System Level LET with Application to Automotive Design (Technical Memorandum)", Institute of Computer and Network Engineering, TU Braunschweig, 2018.

@techreport{ernst2018system,

author = {Rolf Ernst and Leonie Ahrendts and Kai-Björn Gemlau and Sophie Quinton and Hermann von Hasseln and Julien Hennig},
institution = {Institute of Computer and Network Engineering, TU Braunschweig},
title = {{System Level LET with Application to Automotive Design (Technical Memorandum)}},
year = {2018}

}

Leonie Ahrendts, Sophie Quinton, Thomas Boroske and Rolf Ernst, "Verifying Weakly-Hard Real-Time Properties of Traffic Streams in Switched Networks" in Leibniz International Proceedings in Informatics, Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2018, 30th Euromicro Conference on Real-Time Systems.

@inproceedings{oleauqswlt2018verifying,

author = {Leonie Ahrendts and Sophie Quinton and Thomas Boroske and Rolf Ernst},
booktitle = {Leibniz International Proceedings in Informatics},
note = {30th Euromicro Conference on Real-Time Systems},
organization = {Schloss Dagstuhl – Leibniz-Zentrum für Informatik},
title = {{Verifying Weakly-Hard Real-Time Properties of Traffic Streams in Switched Networks}},
year = {2018}

}

Leonie Ahrendts, Sophie Quinton and Rolf Ernst, "Exploiting Execution Dynamics in Timing Analysis Using Job Sequences", IEEE Design & Test, vol. 35, No. 4, pp. 16-22, 2018.

@article{ahrendts2017exploiting,

author = {Leonie Ahrendts and Sophie Quinton and Rolf Ernst},
journal = {IEEE Design & Test},
pages = {16-22},
title = {{Exploiting Execution Dynamics in Timing Analysis Using Job Sequences}},
volume = {35},
year = {2018}

}

10.

Leonie Ahrendts, Sophie Quinton and Rolf Ernst, "Finite Ready Queues As a Mean for Overload Reduction in Weakly-Hard Real-Time Systems" in RTNS, (Grenoble, France), 2017.

@inproceedings{ahrendts2017finite,

address = {Grenoble, France},
author = {Leonie Ahrendts and Sophie Quinton and Rolf Ernst},
booktitle = {RTNS},
title = {{Finite Ready Queues As a Mean for Overload Reduction in Weakly-Hard Real-Time Systems}},
year = {2017}

}

11.

Robin Hofmann, Leonie Ahrendts and Rolf Ernst, "CPA ‐ Compositional Performance Analysis", in Handbook of Hardware/Software Codesign (Ha, Soonhoi; Teich, Jürgen, Ed.), pp. 1-31, Dordrecht: Springer, 2017.

@incollection{hofmann2017handbook,

address = {Dordrecht},
author = {Robin Hofmann and Leonie Ahrendts and Rolf Ernst},
booktitle = {Handbook of Hardware/Software Codesign},
editor = {Ha, Soonhoi; Teich, Jürgen, Ed.},
pages = {1-31},
publisher = {Springer},
title = {{CPA ‐ Compositional Performance Analysis}},
year = {2017}

}

12.

Leonie Ahrendts, Zain A. H. Hammadeh and Rolf Ernst, "Guarantees for Runnable Entities with Heterogeneous Real-Time Requirements" in Design, Automation & Test in Europe Conference & Exhibition (DATE), 2016.

@inproceedings{ycwjzvxgql2016guarantees,

author = {Leonie Ahrendts and Zain A. H. Hammadeh and Rolf Ernst},
booktitle = {Design, Automation & Test in Europe Conference & Exhibition (DATE)},
title = {{Guarantees for Runnable Entities with Heterogeneous Real-Time Requirements}},
url = {http://ieeexplore.ieee.org/document/7459576/},
year = {2016}

}

13.

Eberle A Rambo, Alexander Tschiene, Jonas Diemer, Leonie Ahrendts and Rolf Ernst, "FMEA-Based Analysis of a Network-on-Chip for Mixed-Critical Systems" in Networks on Chip (NoCS), 2014 Eighth IEEE/ACM International Symposium on, 2014.

@inproceedings{rambo2014fmeabased,

author = {Eberle A Rambo and Alexander Tschiene and Jonas Diemer and Leonie Ahrendts and Rolf Ernst},
booktitle = {Networks on Chip (NoCS), 2014 Eighth IEEE/ACM International Symposium on},
title = {{FMEA-Based Analysis of a Network-on-Chip for Mixed-Critical Systems}},
url = {http://dx.doi.org/10.1109/NOCS.2014.7008759},
year = {2014}

}

14.

Eberle A Rambo, Alexander Tschiene, Jonas Diemer, Leonie Ahrendts and Rolf Ernst, "Failure Analysis of a Network-on-Chip for Real-Time Mixed-Critical Systems" in Design, Automation & Test in Europe Conference & Exhibition (DATE), 2014, pp. 1-4, März 2014.

@inproceedings{rambo2014failure,

author = {Eberle A Rambo and Alexander Tschiene and Jonas Diemer and Leonie Ahrendts and Rolf Ernst},
booktitle = {Design, Automation & Test in Europe Conference & Exhibition (DATE), 2014},
month = mar,
pages = {1-4},
title = {{Failure Analysis of a Network-on-Chip for Real-Time Mixed-Critical Systems}},
url = {http://dx.doi.org/10.7873/DATE.2014.288},
year = {2014}

}

15.

Eberle A Rambo, Leonie Ahrendts and Jonas Diemer, "FMEA of the IDAMC NoC", Technische Universität Braunschweig, 2013.

@techreport{rambo2013fmeaof,

author = {Eberle A Rambo and Leonie Ahrendts and Jonas Diemer},
institution = {Technische Universität Braunschweig},
title = {{FMEA of the IDAMC NoC}},
year = {2013}

}

Teaching

Exercise sessions for the course Advanced Computer Architecture
Supervision of the laboratory course Embedded Processors

Leonie Köhler (née Ahrendts)

Research Activities

Publications

Teaching

Contact

Office hours: