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Photonic Network Communications

, Volume 18, Issue 1, pp 116–121 | Cite as

A connectivity-based approach for the construction of hierarchical WDM network topology

  • I.-Hsuan Peng
  • Yen-Wen Chen
  • Po-Wei Wu
Article
  • 48 Downloads

Abstract

A hierarchical network model can effectively reduce the complexity of routing and wavelength assignment (RWA) in wavelength division multiplexing (WDM) networks compared to a flat model. However, the resource utilization may greatly suffer if the hierarchical architecture is not properly arranged. By considering the degree of each WDM node and the location effect, this paper proposes a systematic approach to construct the hierarchical topology in WDM networks so that resource utilization can be maximized. Simulation results demonstrate that the performance of the proposed scheme is superior to that of another scheme.

Keywords

WDM Hierarchical topology Routing and wavelength assignment 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Communication EngineeringNational Central UniversityChung-LiTaiwan, ROC

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