Traffic-aware Elastic Optical Networks to leverage Energy Savings

Ioan Turus, Anna Manolova Fagertun, Lars Dittmann, Annalisa Morea, Dominique Verchere, Josva Kleist

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Because of the static nature of the deployed optical networks, large energy wastage is experienced today in production networks such as Telecom networks . With power-adaptive optical interfaces and suitable grooming procedures, we propose the design of more energy efficient transport networks. Optical network reconfigurations are performed by GMPLS node controllers according to monitored traffic information. The investigated energy reduction strategies are simulated on two large scale transport networks (DT17 and COST37). The results show that the energy savings obtained by these strategies depend on the variability of the carried traffic and the characteristics of the network topology . For medium size DT17 network significant (more than 3 7 %) power savings are achieved only with symbol-rate adaptation while less savings are achieved for modulation format adaptation. In case of pan-Europea n COST37 network, for both symbol-rate and modulation format adaptations significant savings are obtained . Mixed adaptation (jointly performing symbol-rate and modulation format adaptations) used together with optical grooming allows up to 4 4 % and 4 7 % power savings in DT17 and COST37 networks respectively, close to the optimum power savings case 48,2 % computed when the power follows exactly the traffic demand pattern
Original languageEnglish
Title of host publicationProceedings of 6th IEEE Latin-American Conference on Communications (LATINCOM)
Number of pages6
Publication date2014
ISBN (Print)978-1-4799-6737-7
Publication statusPublished - 2014
Event6th Latin-American Conference on Communications - Cartagena de Indias, Colombia
Duration: 5 Nov 20147 Nov 2014


Conference6th Latin-American Conference on Communications
CityCartagena de Indias


  • Energy
  • Efficiency
  • Elastic
  • Grooming


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