Real-Time Systems: Design Principles for Distributed Embedded Applications
Real-Time Systems: Design Principles for Distributed Embedded Applications
Bus Architectures for Safety-Critical Embedded Systems
EMSOFT '01 Proceedings of the First International Workshop on Embedded Software
Compositional Design of RT Systems: A Conceptual Basis for Specification of Linking Interfaces
ISORC '03 Proceedings of the Sixth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing
Semantic Reliability in Distributed Systems: Ontology Issues and System Engineering
WI '03 Proceedings of the 2003 IEEE/WIC International Conference on Web Intelligence
Event-Triggered and Time-Triggered Control Paradigms
Event-Triggered and Time-Triggered Control Paradigms
Virtual Networks in an Integrated Time-Triggered Architecture
WORDS '05 Proceedings of the 10th IEEE International Workshop on Object-Oriented Real-Time Dependable Systems
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
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The DECOS architecture divides the overall system into a set of nearly-independent distributed application subsystems, which share the node computers and the physical network of a single distributed computer system. Through restricting each application subsystem's communication activities to a corresponding encapsulated virtual network realized as an overlay network on a time-triggered backbone, the DECOS architecture supports fault isolation, complexity management, and the independent development of application subsystems. This paper provides a solution to the controlled export and import of information between distributed application subsystems. We give the designer the ability to coordinate application services and exploit redundancy in the system to either improve reliability or reduce resource duplication. We introduce virtual gateways for the coupling of virtual networks by the selective redirection of messages. Virtual gateways not only resolve property mismatches between distributed application subsystems, but also preserve encapsulation.