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Photonic Network Communications

, Volume 17, Issue 3, pp 191–201 | Cite as

On the performance of distributed lightpath provisioning with dynamic routing and wavelength assignment

  • Jian Liu
  • Gaoxi XiaoEmail author
  • Wei Wang
Article

Abstract

Distributed lightpath provisioning in wavelength-division multiplexing (WDM) networks has gained wide research interests. In this article, we study the performance of distributed lightpath provisioning in WDM networks with dynamic routing and wavelength assignment (RWA). Specifically, we consider the case where routing of each lightpath is calculated based on globally flooded link-state information, and wavelength assignment is decided through local information exchanges. Simulation results show that such schemes steadily outperform those schemes with only global flooding or only local information exchanges. More significantly, the impacts of various factors on the proposed scheme, including RWA algorithm, network topology, number of wavelengths per fiber, global flooding interval, and traffic load, have been evaluated. Such evaluations help to achieve some insights useful for the future developments of efficient lightpath provisioning schemes.

Keywords

Wavelength-division multiplexing Distributed lightpath provisioning Routing and wavelength assignment 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Division of Communication Engineering, School of Electrical and Electronic EngineeringNanyang Technological UniversitySingaporeSingapore
  2. 2.School of Telecommunications EngineeringXidian UniversityXi’anPeople’s Republic of China

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