Incremental planning of multi-layer elastic optical networks

P. Papanikolaou, K. Christodoulopoulos, E. Varvarigos

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

7 Citations (Scopus)


Traditionally, network upgrade cycles are long and performed independently for the IP edges and the optical transport layers. The traffic in metro and core networks is forecasted to grow in volume but also in dynamicity and the network operators face the challenge of shorter upgrades, influencing the cost efficiency and suppressing the return of investment. Thus, it is imminent to adopt a multi-period network planning approach and account jointly for the upgrade of the optical but also the IP edges of the network. In this work we formulate the problem of the incremental joint multi-layer planning of an IP over elastic optical network (EON) and propose an ILP formulation to solve it. Our objective is to deploy in a period the minimum additional network resources to cope with the changed traffic (CapEx) from the previous period, but also to minimize the changes for the transition between the two periods (OpEx). Simulation results based on realistic network scenarios validate the proposed planning approach.

Original languageEnglish
Title of host publication2017 International Conference on Optical Network Design and Modeling (ONDM 2017) - Conference Proceedings
EditorsJacek Rak, Marco Ruffini, Hiroaki Harai
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9783901882937
ISBN (Print)9781509040063
Publication statusPublished - 23 Jun 2017
Externally publishedYes
EventInternational Conference on Optical Network Design and Modeling 2017 - Danubius Hotel Margitsziget, Budapest, Hungary
Duration: 15 May 201717 May 2017
Conference number: 21st


ConferenceInternational Conference on Optical Network Design and Modeling 2017
Abbreviated titleONDM 2017
Internet address


  • Elastic optical networks
  • incremental capacity planning
  • joint multi-layer network planning

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