A model-based foundation for evaluating large scale telecommunications systems

UltraSAN based on stochastic activity networks (SANs), provides a sophisticated model-based environment for evaluating large-scale telecommunications systems. When modeling telecommunications systems, one must often contend with performance measures based on rare events. Such performance measures po...

Full description

Saved in:
Bibliographic Details
Published inProceedings of Phoenix Conference on Computers and Communications pp. 367 - 369
Main Authors Obal, W.D., Sanders, W.H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1993
Subjects
Application software
Large-scale systems
Monte Carlo methods
Petri nets
State-space methods
Stochastic processes
Stochastic systems
Storage area networks
Switches
Telecommunication switching
Online AccessGet full text

Cover

More Information
Summary:UltraSAN based on stochastic activity networks (SANs), provides a sophisticated model-based environment for evaluating large-scale telecommunications systems. When modeling telecommunications systems, one must often contend with performance measures based on rare events. Such performance measures pose a difficult problem for traditional model solution techniques. In particular, performance measures based on rare events lead to stiff systems that are difficult to solve analytically. Traditional simulation techniques can take a very long time to collect a statistically significant sample of a performance variable based of a rare event. The efficiency of simulation-based evaluations of such measures can be improved by using a variance reduction technique called importance sampling. The authors discuss the UltraSAN software and a general framework developed for the application of importance sampling to SANs within the UltraSAN environment.< >
ISBN:0780309227
9780780309227
DOI:10.1109/PCCC.1993.344502