A survey on physical layer impairments aware routing and wavelength assignment algorithms in optical networks

  • Authors:
  • Siamak Azodolmolky;Mirosław Klinkowski;Eva Marin;Davide Careglio;Josep Solé Pareta;Ioannis Tomkos

  • Affiliations:
  • Technical University of Catalonia (UPC), C/Jordi Girona, 1-3, 08034 Barcelona, Catalonia, Spain and Athens Information Technology (AIT), Markopoulo Ave., 19002 Peania, Athens, Greece;Technical University of Catalonia (UPC), C/Jordi Girona, 1-3, 08034 Barcelona, Catalonia, Spain and National Institute of Telecommunications (NIT), 1 Szachowa Street, 04-894 Warsaw, Poland;Technical University of Catalonia (UPC), C/Jordi Girona, 1-3, 08034 Barcelona, Catalonia, Spain;Technical University of Catalonia (UPC), C/Jordi Girona, 1-3, 08034 Barcelona, Catalonia, Spain;Technical University of Catalonia (UPC), C/Jordi Girona, 1-3, 08034 Barcelona, Catalonia, Spain;Athens Information Technology (AIT), Markopoulo Ave., 19002 Peania, Athens, Greece

  • Venue:
  • Computer Networks: The International Journal of Computer and Telecommunications Networking
  • Year:
  • 2009

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Abstract

Optical networks are moving from opaque and translucent architectures towards all-optical (transparent) architectures. In translucent architectures a small amount of regeneration (e.g. optical-electronic-optical conversion) is available in the network. The incorporation of the physical impairments in the routing and wavelength assignment (RWA) problem in transparent optical networks has recently received some attention from the research communities. This work compiles a comprehensive survey of the proposed algorithms that address this issue. The physical layer impairments and related classification in optical networks are initially presented followed by physical layer impairments (PLI) constrained and aware RWA algorithms. Algorithmic approach, current PLI-RWA proposals, impact of wavelength conversion on these algorithms, protection and resilience considerations, and proposed extensions to control planes are covered in this work. Further research topics are presented in this study.