RTAI: Real Time Application Interface
Linux Journal
Distributed Systems: Concepts and Design
Distributed Systems: Concepts and Design
An Integrated Architecture for Future Car Generations
ISORC '05 Proceedings of the Eighth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing
Virtual Networks in an Integrated Time-Triggered Architecture
WORDS '05 Proceedings of the 10th IEEE International Workshop on Object-Oriented Real-Time Dependable Systems
A Framework for Component-based Construction Extended Abstract
SEFM '05 Proceedings of the Third IEEE International Conference on Software Engineering and Formal Methods
An integrated architecture for future car generations
Real-Time Systems
Formal Specification of Gateways in Integrated Architectures
SEUS '08 Proceedings of the 6th IFIP WG 10.2 international workshop on Software Technologies for Embedded and Ubiquitous Systems
Experimental evaluation of the DECOS fault-tolerant communication layer
SAFECOMP'07 Proceedings of the 26th international conference on Computer Safety, Reliability, and Security
A comparison of partitioning operating systems for integrated systems
SAFECOMP'07 Proceedings of the 26th international conference on Computer Safety, Reliability, and Security
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Due to the better utilization of computational and communication resources and the improved coordination of application subsystems, designers of large distributed embedded systems (e.g., in the automotive domain) are eager to replace existing federated architectures with integrated ones. This paper focuses on the communication infrastructure of the DECOS integrated system architecture, which realizes for each application subsystem a so-called virtual network as an overlay network on top of a time-triggered communication protocol. Since all virtual networks share a single physical network, virtual networks promise massive cost savings through the reduction of physical networks and reliability improvements with respect to wiring and connectors. Furthermore, virtual networks support application subsystems that range from ultra-dependable control applications (e.g., an X-by-wire system) to non safetycritical applications such as comfort systems. For this reason, two classes (event-triggered and time-triggered) of virtual networks are realized. Encapsulation mechanisms ensure that the temporal properties of each virtual network are known a priori and independent from the communication activities in other virtual networks. In order to ensure that the virtual network abstractions hold also in the case of software faults, each application subsystem possesses a dedicated virtual network with statically assigned resources at the underlying time-triggered communication service.