@inproceedings{ce48262660614d238f42651fac42f982,
title = "A model-based foundation for evaluating large scale telecommunications systems",
abstract = "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.",
author = "Obal, {W. Douglas} and Sanders, {William H.}",
note = "Funding Information: *This work was supported by the University of Arizona Advanced Telecommunications Research Project. Publisher Copyright: {\textcopyright} 1993 IEEE.; 1993 Phoenix Conference on Computers and Communications, PCCC 1993 ; Conference date: 23-03-1993 Through 26-03-1993",
year = "1993",
doi = "10.1109/PCCC.1993.344502",
language = "English (US)",
series = "Proceedings of Phoenix Conference on Computers and Communications, PCCC 1993",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "367--369",
booktitle = "Proceedings of Phoenix Conference on Computers and Communications, PCCC 1993",
address = "United States",
}