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Paper Details

%T Guarenteed Message Delivery Time on Real\-Time Distributed Systems
%A T. -Y. Yang, G. S. Stiles
%E Alan G. Chalmers, Majid Mirmehdi, Henk Muller
%B Communicating Process Architectures 2001
%X Real\-time systems require guaranteed timely delivery of
   messages; failure to deliver a message on time may result in
   failure of the system and possible damage to life and
   property. We describe here an extension and implementation
   of an algorithm developed by Kandlur et al. for guaranteed
   message delivery. We extend this by adding two\-phase
   randomized routing in the channel establishment procedure;
   this scheme requires each route to go first to a randomly
   chosen intermediate node, and only then to its actual
   destination. This scheme balances the load demonstrably
   better than direct routing, with respect to the likelihood
   of acceptance of each individual channel. Given certain
   constraints on the generation and size of messages, it is
   possible to schedule those messages such that messages
   arrive within their desired deadlines. Experiments on an
   8\-node network demonstrate the feasibility of the approach,
   and provide verification of Kandlur\[rs]s algorithm.

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