Multifacetted modelling and discrete event simulation
Multifacetted modelling and discrete event simulation
Object-oriented simulation with hierarchical, modular models: intelligent agents and endomorphic systems
GDEVS: A generalized discrete event specification for accurate modeling of dynamic systems
Transactions of the Society for Computer Simulation International
Hardware Description Languages: Concepts and Principles
Hardware Description Languages: Concepts and Principles
Theory of Modelling and Simulation
Theory of Modelling and Simulation
Theory of Modeling and Simulation
Theory of Modeling and Simulation
Evolution of Continuous-Time Modeling and Simulation
Proceedings of the 12th European Simulation Multiconference on Simulation - Past, Present and Future
An accurate time delay model for large digital network simulation
DAC '76 Proceedings of the 13th Design Automation Conference
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Given a process whose output is a dynamic function of time, the traditional discrete event abstraction approximates the input, output, and state trajectories through piecewise constant segments. For processes that defy accurate modeling through piecewise constant segments, this paper presents GDEVS, a Generalized Discrete Event Specification, wherein the trajectories are organized through piecewise polynomial segments. The utilization of arbitrary polynomial functions for segments promises higher accuracies in modeling continuous processes as discrete event abstractions that, in turn, permit faster execution on host computers in contrast to continuous simulations. A key contribution of GDEVS is that it permits the development of a uniform simulation environment for hybrid, i.e., both continuous and discrete, systems. For complex systems that employ hierarchical descriptions, the need to interconnect models at different levels of abstraction gives rise to the issue of coupled models in GDEVS. This paper introduces the notion of a coupled model and illustrates with examples of GDEVS simulations of continuous systems.