Gilles Bertrand Gnokam Defo

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In this paper we present an approach to increase the fault tolerance in FlexRay networks by introducing backup nodes to replace defect ECUs (Electronic Control Units). In order to reduce the memory requirements of such backup nodes, we distribute redundant tasks over different nodes and propose the distributed coordinated migration of tasks of the defect(More)
In this paper we present new concepts to resolve ECU (Electronic Control Unit) failures in FlexRay networks. Our approach extends the FlexRay bus schedule by redundant slots with modifications in the communication and slot assignment. We introduce additional backup nodes to replace faulty nodes. To reduce the required memory resources of the backup nodes,(More)
Many heterogeneous embedded systems, for example industrial automation and automotive applications, require hard-real time constraints to be exhaustively verified - which is a challenging task for the verification engineer. To cope with complexity, verification techniques working on different abstraction levels are best practice. SystemC is a versatile C++(More)
In this paper we investigate whether multi-objective evolution of digital hardware components has advantages over single-objective evolution in terms of convergence and robustness. To that end, we experimentally compare a standard genetic algorithm to several multi-objective optimizers on a set of test problems. The results show that, for more complex test(More)
Zusammenfassung Restbus-Simulationen (RBS) werden insbesondere im Entwurf automobiler Software angewandt, um einzelne physikalische Komponenten in einer teilweisen virtuellen Umgebung zu validieren. Bei der Restbus-Simulation werden Daten zwischen den simulierten und den realen Netzwerkknoten ausgetauscht und analysiert. Das Ziel dabei ist es, die(More)
This work proposes an advanced methodology based on an open source virtual prototyping framework for verification of complex Heterogeneous Embedded Systems (HES). It supports early rapid modelling of complex HES through smooth refinements, an open interface based on IP-XACT extensions for secure composition of HES components, and automatic testbench(More)
This article introduces basic functions of our IP-XACT based framework for automated design integration with mixed-level IPs and the key concepts behind the IP auto-assembly. The framework was generated from the SPIRIT standard XML data schema. Two examples, one with the CoreConnect SoC architecture and another one with an in-house library for FlexRay(More)
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