Parallel execution for serial simulators
ACM Transactions on Modeling and Computer Simulation (TOMACS)
Scalable fluid models and simulations for large-scale IP networks
ACM Transactions on Modeling and Computer Simulation (TOMACS)
Stochastic processes for computer network traffic modeling
Computer Communications
Distributed dynamic capacity contracting: an overlay congestion pricing framework
Computer Communications
Time-driven fluid simulation for high-speed networks
IEEE Transactions on Information Theory
Design and implementation of a network domain agency for scaleable QoS in the Internet
Computer Communications
Users' responsiveness in the price-controlled best-effort QoS model
Computer Communications
Price aggregation in an end-to-end QoS provisioning
Computer Standards & Interfaces
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The dynamics of computer networks was until recently modelled mostly with discrete-event simulations and queuing systems. Modern computer networks are becoming large and complex, and discrete-event simulation schemes are too slow to successfully model their behavior. Researchers and engineers are switching to more novel approaches, like fluid simulation schemes, where network elements are described as fluid servers which process workload continuously, yet the traffic source can be of arbitrary type, including discrete-event source and fluid source. We are developing this idea further and propose even simpler schema, using the systems dynamics simulation approach in our schema, the network topology and routing information is represented by relatively simple matrix algebra. The schema can be used to model computer systems for various purposes, from the topology and capacity design and optimization in every day practice, to more theoretical work like testing new technology and policy approaches. Besides the formal description of the proposed schema, the paper also gives an example of its adaptation to model the behavior of a price-controlled end-to-end QoS provision in computer networks.