Channel assignment for a metro hub under nonuniform traffic

Yiu Wing Leung*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review


We consider a metro wavelength-divisionmultiplexing (WDM) network in which a metro hub connects multiple local networks to a backbone network. In many practical scenarios, the metro WDM network has nonuniform traffic. A metro hub recently studied in the literature can effectively transport nonuniform traffic via nonuniform channel assignment. To realize this feature, it is necessary to assign wavelength channels within the hub to fulfill the given channel requirements while avoiding wavelength conflict. In this letter, we formulate this wavelength assignment problem and propose an efficient method to solve it.

Original languageEnglish
Pages (from-to)1787-1789
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number21
Publication statusPublished - Nov 2008

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Channel assignment
  • Metro hub
  • Metro wavelength-division-multiplexing (WDM) networks
  • Wavelength conflict


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