NDLI: Power efficient service differentiation based on traffic-aware survivable elastic optical networks

Content Provider	IEEE Xplore Digital Library
Author	Turus, Ioan Fagertun, Anna Manolova Dittmann, Lars Morea, Annalisa Verchere, Dominique Kleist, Josva
Copyright Year	2014
Description	Author affiliation: Technical University of Denmark, DK-2800, Lyngby, Denmark (Turus, Ioan; Fagertun, Anna Manolova; Dittmann, Lars) \|\| Optical Networks Department, Bell Labs Centre de Villarceaux, Nozay, France (Morea, Annalisa; Verchere, Dominique) \|\| NORDUnet A/S, DK-2700, Kastrup, Denmark (Kleist, Josva)
Abstract	This study assesses the feasible energy savings when defining different service classes based on protection schemes in core optical networks. We propose a dedicated energy saving strategy for each of the service classes in order to minimize the overall power consumption of the network. Four Classes of Service are considered: platinum, gold, silver and best effort. Platinum connections benefit from a 1+1 protection scheme, gold connections and silver connections are assigned to a 1∶1 protection with the difference that in case of gold connections the same pair of transponders is shared by the working and protection sections. Best-effort connections do not have any associated protection. Two scenarios are implemented and compared. The first, the baseline approach, does not take into account any traffic-aware strategies while the second one, the proposed approach, includes energy reduction strategies taking into account the sleep-mode capability of the opto-electronic devices as well as the elastic data-rate adaptation based on symbol-rate and modulation-format reconfigurations. The results show that in the baseline approach the power consumption is strongly dependent on the ratio between the different service classes while for the proposed approach the difference in power consumption is almost negligible. Moreover, in case of the proposed approach, silver service class can benefit for superior quality of service compared to the gold service class, due to the grooming mechanism.
Starting Page	91
Ending Page	96
File Size	1494228
Page Count	6
File Format	PDF
ISBN	9781479970391
e-ISBN	9781479970407
DOI	10.1109/RNDM.2014.7014936
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-17
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silver Gold Services Power demand Elastic Energy Platinum Priority Optical fiber networks Repeaters Transponders Protection
Content Type	Text
Resource Type	Article

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