Evaluating differentiated quality of service parameters in optical packet switching

Poul E. Heegaard, Werner Sandmann

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Optical packet switching (OPS) is a promising technology for future generation networks solutions. One of the great challenges to be addressed is differentiated quality of service (QoS) and a major concern in providing QoS is packet loss. In case of differentiated services, packet losses should be significantly less likely for high priority classes than for low priority classes. However, as packet losses are very unlikely they become rare events which poses serious challenges to conventional analysis methodologies. We present an importance sampling scheme for fast simulation of packet loss rates in this setting. The change of measure adapts according to ant colony optimization, a metaheuristic inspired by the foraging behavior of ants. Thereby, our simulation does not require intimate a priori knowledge of the system and overcomes a general drawback of importance sampling. Within very moderate simulation time, accurate results are provided for an OPS model with varying parameter settings.

Original languageEnglish
Title of host publicationNext Generation Teletraffic and Wired/Wireless Advanced Networking - 7th International Conference, NEW2AN 2007, Proceedings
PublisherSpringer Verlag
Pages162-174
Number of pages13
ISBN (Print)3540748326, 9783540748328
DOIs
StatePublished - 2007
Externally publishedYes
Event7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, NEW2AN 2007 - St. Petersburg, Russian Federation
Duration: 10 Sep 200714 Sep 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4712 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, NEW2AN 2007
Country/TerritoryRussian Federation
CitySt. Petersburg
Period10/09/0714/09/07

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