We describe our experiences designing and implementing a virtual PNNI network testbed. The network elements and signaling protocols modeled are consistent with the ATM Forum PNNI draft specifications. The models will serve as a high-fidelity testbed of the transport and network layers for simulation-based studies of the scalability and performance of PNNI protocols. Our models are written in th...

We are developing software to explore the fault tolerance of quantum dot cellular automata gate architectures in the presence of manufacturing variations and device defects. The Topology Optimization Methodology using Applied Statistics (TOMAS) framework extends the capabilities of the A Quantum Interconnected Network Array Simulator (AQUINAS) by adding front-end and back-end software and creat...

I focus on two special requirements for the simulation model: Ability to observe global and local behaviour (“micro/macro-scope”). This means that we should be able to observe in real time (i.e. during the simulation) or subsequently analyze every chosen component of the network. A component of the network could be a challenge, a situation, an agent, a link, or a combination of these. From the ...

in this paper, the advantage of reinforcement learning to develop a new traffic shaper is invoked in order to obtain a reasonable utilization of bandwidth while preventing traffic overload in other parts of the network. this leads to a reduction in the total number of packet droppings in the whole network. the method is implemented in a novel proposed intelligent simulation environment. keeping...

The basic structure of a reactor physics laboratory environment simulation software, developed using object modeling technique (OMT), and based on the reactor point kinetic equation, is presented. Also, various capabilities of the simulator in teaching the fundamental concepts of reactor physics are discussed. In this virtual laboratory, student can perform seven different experiments, ...

Pore–scale modeling and simulation of reactive flow in porous media has a range of diverse applications, and poses a number of research challenges. It is known that the morphology of a porous medium has significant influence on the local flow rate, which can have a substantial impact on the rate of chemical reactions. While there are a large number of papers and software tools dedicated to simu...

This paper describes design and computer simulation of a new architecture of a node active network element, based on artificial neural network technology with the support of priority processing for different connection types. As an example of a network element was selected switching area. This network element with optimized switching ar ea is able to transfer large data quantity with minimum de...

Currently, several offline digital simulation software tools are available, with varying degrees of modeling and simulation capabilities. This paper aims to compare the capabilities of two program packages for electric network simulation: ATP-EMTP and PSCAD/EMTDC for modeling lightning overvoltages. 2000 Mathematics Subject Classification: 68Uxx/Subject Classification for Computer Science. 281,...

/n this work we broach the problem of large neural network simulation using low-cost distributed systems. We have developed for the purpose high-performance client-server simulation software, where the server runs on a multiproeessor Beowulf system. On the basis of a performance analysis, we propose an estimator for the simulation time.

This paper examines strategies of standard software vendors, in view of the existence of network effects on standard software markets. In particular, we analyze if and under which conditions penetration pricing can be considered as a promising strategy. Our work is based on a simulation model, which provides the opportunity to examine the impact of alternative pricing strategies on the distribu...