Impairment Aware Based Routing and Wavelength Assignment in Transparent Long Haul Networks

  • George Markidis
  • Stelios Sygletos
  • Anna Tzanakaki
  • Ioannis Tomkos
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4534)

Abstract

We investigate new routing and wavelength assignment algorithms considering as constraints physical impairments that arise in transparent networks. Accounting both linear and nonlinear impairments we propose a scheme that integrates the routing and wavelength assignment to achieve an optimal combination of physical and networking performance. Through simulations of a typical long haul network the improvement achieved using the proposed approach compared to conventional RWA algorithms (i.e shortest path and first fit) is demonstrated and the significance of impairment aware routing and wavelength assignment schemes is recognized.

Keywords

Routing and Wavelength Assignment (RWA) Impairment Constraint Based Routing (ICBR) transmission impairments transparent networks 

Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • George Markidis
    • 1
  • Stelios Sygletos
    • 1
  • Anna Tzanakaki
    • 1
  • Ioannis Tomkos
    • 1
  1. 1.Athens Information Technolgy (AIT),19,5 Markopoulou Avenue 68, 19002 AthensGreece

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