Algorithms for Scheduling Imprecise Computations
Computer - Special issue on real-time systems
Horus: a flexible group communication system
Communications of the ACM
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
A real-time medium access control protocol for ad hoc wireless local area networks
ACM SIGMOBILE Mobile Computing and Communications Review
Reliable Real-Time Communication in Cooperative Mobile Applications
IEEE Transactions on Computers
Continuous Clock Synchronization in Wireless Real-Time Applications
SRDS '00 Proceedings of the 19th IEEE Symposium on Reliable Distributed Systems
Real-Time Behaviour in a Heterogeneous Environment?
WORDS '97 Proceedings of the 3rd Workshop on Object-Oriented Real-Time Dependable Systems - (WORDS '97)
Managing Dynamic Groups of Mobile Systems
ISADS '03 Proceedings of the The Sixth International Symposium on Autonomous Decentralized Systems (ISADS'03)
Guaranteed On-Line Weakly-Hard Real-Time Systems
RTSS '01 Proceedings of the 22nd IEEE Real-Time Systems Symposium
RE: Robust Earliest Deadline Scheduling
RE: Robust Earliest Deadline Scheduling
Clock synchronization for wireless local area networks
Euromicro-RTS'00 Proceedings of the 12th Euromicro conference on Real-time systems
Building Reliable Mobile Applications with Space-Elastic Adaptation
WOWMOM '06 Proceedings of the 2006 International Symposium on on World of Wireless, Mobile and Multimedia Networks
Wireless Communication in Mobile Robotics a Case for Standardization
Wireless Personal Communications: An International Journal
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There is a sustained trend to embed computer systems in all kinds of intelligent products. Increasing emphasis is given to enhance the functionality of such systems beyond the provision of easy-of-use and comfort to more safety-critical tasks where they exert direct control over the intelligent product. Examples of such systems can be exploited in many domains like team robotics, factory automation, transport systems, and intelligent traffic control. To master the inherent complexity, we present a layered system architecture that partly integrates already existing components. It has to cope with two major challenges imposed by the considered type of applications. First, the architecture has to resolve the conflict between the autonomy of the individual systems and the demand to cooperate. We think that coordination is the key to the required effective cooperation. Coordination means that the individual systems can take actions under local control, based on a sufficiently consistent view of the common system environment and on the application of a set of common rules. To enable this, the proposed architecture provides the necessary communication services. Secondly, system control must be prepared to cope with a dynamic and unpredictable system environment. Still guaranteeing QoS properties, especially real-time behavior, necessitates innovative solution concepts. Our approach is to exploit system -- and application -- inherent redundancies across different layers of the architecture.