Analysis of the impact of wavelength converters on contention resolution in optical burst switching

Ali Rajabi, Aresh Dadlani, Farhad Hormozdiari, Ahmad Khonsari, Ahmad Kianrad, Hassan Seyed Razi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Optical burst switching (OBS) appears to be the best available solution to the ever-increasing demand for Internet bandwidth. As a multifaceted paradigm, it has opened up various motivating challenges in optical networking. Several analytical models regarding optical networking have been proposed in the literature. However, to the best of our knowledge, these models follow an exponential burst length distribution which is unrealistic in the case of threshold-based burst aggregation occurring at edge switches. In this work, we present an insightful model which considers constant burst lengths and study the effect of employing wavelength converters (WC) to the resource utilization and contention resolution policy. We investigate two types of optical switches in terms of availability of WCs in the switch fabric and study their performance through mathematical modeling using the results of queuing theory. We then further extend our investigation by comparing these switches through simulation experiments and thus, confirm our mathematical model. For the purpose of tractability, we also present an approximate model of M/D/c/K queuing system with finite waiting room using an M/D/1/K system.

Original languageEnglish
Title of host publicationProceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008
Pages259-264
Number of pages6
DOIs
Publication statusPublished - Sep 1 2008
Externally publishedYes
Event2nd Asia International Conference on Modelling and Simulation, AMS 2008 - Kuala Lumpur, Malaysia
Duration: May 13 2008May 15 2008

Publication series

NameProceedings - 2nd Asia International Conference on Modelling and Simulation, AMS 2008

Conference

Conference2nd Asia International Conference on Modelling and Simulation, AMS 2008
CountryMalaysia
CityKuala Lumpur
Period5/13/085/15/08

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Modelling and Simulation

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