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Eighth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC'05)
Fault-Tolerant Hard-Real-Time Communication of Dynamically Reconfigurable, Distributed Embedded Systems
Seattle, Washington
May 18-May 20
ISBN: 0-7695-2356-0
Andr? Luiz de Freitas Francisco Francisco, RtM, University of Paderborn, Germany
Franz J. Rammig, HNI, University of Paderborn, Germany
Building up hard-real-time networks for distributed systems with dynamical structures poses severe design challenges. As the set of nodes varies, the use of protocols which request a complete setup with every modification becomes prohibitive. This paper presents a new concept (called TrailCable) that aims at increasing the flexibility in building up hard-real-time communication systems. The concept consists of an extendable network made up of point-to-point connections, with each node acting as a router with an integrated communication scheduler. The protocol offers the possibility to use unallocated bandwidth for aperiodic data transmissions. Moreover, functionalities that guarantee the communication channels to be fault-tolerant are also included. Through the collection of these properties, the protocol described in this paper is well adapted to highly dynamic, distributed real-time systems. As a case study, this new communication protocol is applied to an innovative railway system, the so-called RailCab.
Citation:
Andr? Luiz de Freitas Francisco Francisco, Franz J. Rammig, "Fault-Tolerant Hard-Real-Time Communication of Dynamically Reconfigurable, Distributed Embedded Systems," isorc, pp.275-283, Eighth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC'05), 2005
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