Showing papers on "Network traffic simulation published in 1979"

A distributed approach to queueing network simulation

Abstract: Discrete simulation is a widely used technique for system performance evaluation. The conventional approach to discrete simulation (e.g., GPSS, Simscript) does not attempt to exploit the parallelism typically available in queueing network models. In this paper, a distributed approach to discrete simulation is presented. It involves the decomposition of a simulation into components and the synchronization of these components by message passing. This approach can result in the speedup of the total time to complete a given simulation if a network of processors is available. The architecture of a microcomputer network suitable for distributed simulation is described and some results concerning the distributed approach are presented.

Decomposition of Traffic in Loss Systems with Renewal Input

Abstract: A method is proposed for the analysis of a teletraffic network with alternative routing. The approach used is to model a "general link" as a separate entity, being a first step towards analyzing the network in a link-by-link fashion. To this end the general link is considered to be a group of fully available trunks offered a number of separate streams of traffic. By considering the multivariate point process formed by the total stream of arriving calls, the individual streams of traffic overflowing from, and the individual streams of traffic carried on the common trunk, are distinguished. All streams of traffic in the network are considered to be well described by simple renewal processes. The validity of the method is illustrated with exact numerical results and by simulation.

On the One-Moment Analysis of Telephone Traffic Networks

Abstract: In this paper is a formulation of the one-moment method of analysis for a telephone traffic network in terms of the link offered traffics. By using a slightly strengthened version of the assumptions hitherto used in one-moment analysis, and by developing a type of limited availability link model, it is shown how the offered traffic to each link may be found, and thus how the network analysis may be reduced to a valid set of link analyses.

Using conditional expectation to reduce variance in discrete event simulation

Abstract: We review the method of using conditional expectation to reduce variance in discrete event simulation and present a new application to the simulation of queueing networks. This method can be particularly useful in reducing variance when estimating quantities associated with rare events.

A human simulation validation of a telephone loop network simulation model

Abstract: A computer simulation model was built to study various strategies for the assignment of telephone loop network facilities to customers. Results of this analysis are presented along with a novel approach to validate the analysis - simulating the simulation model with real data and real assignment personnel.