TY - JOUR A1 - Krämer, Stefan A1 - Mottok, Jürgen A1 - Meier, Hans T1 - Multi-Core Scheduling in Embedded Systemen, Teil 2 JF - Hanser Automotive Y1 - 2010 IS - 3-4 SP - 23 EP - 25 ER - TY - JOUR A1 - Krämer, Stefan A1 - Mottok, Jürgen A1 - Meier, Hans T1 - Multi-Core Scheduling in Embedded Systemen, Teil 3 JF - Hanser Automotive Y1 - 2010 IS - 5-6 SP - 14 EP - 16 ER - TY - JOUR A1 - Raab, Peter A1 - Krämer, Stefan A1 - Mottok, Jürgen A1 - Vavricka, Vlastimil T1 - Isomorphism between Linear Codes and Arithmetic Codes for Safe Data Processing in Embedded Software Systems JF - Computing and Informatics (CAI) N2 - We present a transformation rule to convert linear codes into arithmetic codes. Linear codes are usually used for error detection and correction in broadcast and storage systems. In contrast, arithmetic codes are very suitable for protection of software processing in computer systems. This paper shows how to transform linear codes protecting the data stored in a computer system into arithmetic codes safeguarding the operations built on this data. Combination of the advantages of both coding mechanisms will increase the error detection capability in safety critical applications for embedded systems by detection and correction of arbitrary hardware faults. Y1 - 2014 UR - https://pdfs.semanticscholar.org/eb7c/f626eb4dcf33bb9c615d477099188eadc76b.pdf?_ga=2.23977850.1374482597.1614464499-73487869.1612391519 VL - 33 SP - 721 EP - 734 ER - TY - CHAP A1 - Krämer, Stefan A1 - Raab, Peter A1 - Mottok, Jürgen A1 - Racek, Stanislav T1 - Comparison of Enhanced Markov Models and Discrete Event Simulation – for evaluation of probabilistic Faults in safety-critical real-time task sets T2 - Proceedings of EUROMICRO DSD 2014 - 17th Euromicro Conference on Digital System Design N2 - In this paper we present simulation and model based approaches for evaluating and validating the temporal and safety relevant properties of software intensive safety-critical real-time embedded systems. A high level reliability model of a safe task execution is described by a continuous-time Markov process, enhanced by the modeling of execution times. It is shown that the behavior - regarding real-time and safety metrics - of this theoretical model can be transferred into an abstract system timing model, which then can be analyzed by a discrete event simulation approach. The verification of the discrete event simulation by Markov models offers the possibility of a holistic approach for reliability analysis combined with schedulability analysis of complex safety-critical multicore real-time systems by the discrete event simulation. KW - Model KW - Stochastic simulation KW - reliability analysis KW - safe software processing KW - real-time operating system KW - multicore scheduling KW - discrete event simulation KW - fault injection Y1 - 2014 U6 - https://doi.org/10.1109/DSD.2014.42 SP - 591 EP - 598 ER - TY - CHAP A1 - Krämer, Stefan A1 - Simsek, Erol A1 - Braun, Jürgen A1 - Deubzer, Michael A1 - Stingl, Armin A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Mut zu Fehlern, um die Qualität zu steigern – Fault-Injection zur Steigerung der Zuverlässigkeit T2 - Tagungsband, 6th Embedded Software Engineering, Kongress 2013, 2. bis 6. Dezember 2013, Sindelfingen Y1 - 2013 SN - 978-3-8343-2408-5 SP - 577 EP - 585 ER - TY - CHAP A1 - Seidl, M. A1 - Krämer, Stefan A1 - Mottok, Jürgen T1 - Improving the reliability of an embedded real-time system by applying coded processing T2 - 4th Applied Research Conference, 5th July 2014, Ingolstadt Y1 - 2014 SN - 978-3-8440-2875-1 SP - 70 EP - 74 PB - Shaker CY - Aachen ER -