Routing, code, modulation level and spectrum assignment (RCMLSA) algorithm for elastic optical networks

Demicio Garrido, ARIEL EDGARDO LEIVA LOPEZ, Alejandra Beghelli, Robert Ahumada, Ricardo Olivares

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

To date, most resource allocation proposals in elastic optical networks have focused either on routing and spectrum assignment (RSA, assuming fixed coding scheme and modulation format) or routing, modulation level and spectrum assignment (RMLSA, assuming a fixed coding scheme). Recent research has studied the impact of adaptive assignment of the code rate, without adapting the modulation format (RCSA algorithm). In this paper, we report for the first time the impact that adapting both the code rate as well as the modulation format has on the blocking performance. To do so, we present a new RCMLSA algorithm and evaluate it in terms of blocking by means of simulation. We compared the performance of our RCMLSA algorithm to that of RMLSA and RCSA algorithms. Results obtained for the NSFNet topology show that our RCMLSA algorithm performs better than the RCSA and RMLSA proposals, with a decrease in blocking of more than one order of magnitude (for traffic loads lower than 0.7) with respect to the RCSA.

Original languageEnglish
Title of host publication2016 18th International Conference on Transparent Optical Networks, ICTON 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781509014675
DOIs
StatePublished - 23 Aug 2016
Event18th International Conference on Transparent Optical Networks, ICTON 2016 - Trento, Italy
Duration: 10 Jul 201614 Jul 2016

Publication series

NameInternational Conference on Transparent Optical Networks
Volume2016-August
ISSN (Electronic)2162-7339

Conference

Conference18th International Conference on Transparent Optical Networks, ICTON 2016
CountryItaly
CityTrento
Period10/07/1614/07/16

Keywords

  • elastic optical networks
  • FEC codes
  • routing code rate modulation level and spectrum allocation algorithms
  • routing modulation level and spectrum allocation algorithms
  • RSA algorithms

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