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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: O. Gerstel and P. Iannone
  • Vol. 6, Iss. 5 — May. 1, 2014
  • pp: 476–485

Finding the Target Cost for Sliceable Bandwidth Variable Transponders

Víctor López, Beatriz de la Cruz, Óscar González de Dios, Ori Gerstel, Norberto Amaya, George Zervas, Dimitra Simeonidou, and Juan Pedro Fernandez-Palacios  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 6, Issue 5, pp. 476-485 (2014)
http://dx.doi.org/10.1364/JOCN.6.000476


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Abstract

Elastic optical networking (EON) is a solution that promises to improve infrastructure utilization by implementing flexible spectrum allocation with small spectrum slots instead of the rigid 50 GHz fixed grid of current dense wavelength division multiplexing deployments. This new EON flexible grid supports bandwidth variable transponders (BVTs) that can tune their bit rate and bandwidth dynamically with a trade-off between reach and capacity. However, when BVTs need to transmit at low bit rates, part of their capacity is wasted. Therefore, the sliceable bandwidth variable transponder (SBVT) has been proposed, which can provide even higher levels of elasticity and efficiency to the network. SBVTs enable transmitting from one point to multiple destinations, changing the traffic rate to each destination and the number of destinations on demand. The aim of this work is to identify the target cost of 400Gb/s and 1Tb/s SBVTs to reduce, by at least 50%, transponder costs in a core network scenario. This target cost is calculated in relation to estimations for BVTs of 400Gb/s and 1Tb/s (non-sliceable). In light of our results, cost savings of 50% are feasible for 1Tb/s transponders until 2020 with a higher cost than non-sliceable transponders. Savings of 50% for the 400Gb/s case are possible in the short-term before 1Tb/s SBVTs can appear in the market. Feasibility of such savings with a target cost higher than current non-sliceable transponders shows that SBVTs can be a reality. Moreover, this work assesses the IP port savings thanks to the utilization of the SBVTs.

© 2014 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Research Papers

History
Original Manuscript: December 18, 2013
Revised Manuscript: March 7, 2014
Manuscript Accepted: March 10, 2014
Published: April 16, 2014

Citation
Víctor López, Beatriz de la Cruz, Óscar González de Dios, Ori Gerstel, Norberto Amaya, George Zervas, Dimitra Simeonidou, and Juan Pedro Fernandez-Palacios, "Finding the Target Cost for Sliceable Bandwidth Variable Transponders," J. Opt. Commun. Netw. 6, 476-485 (2014)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-6-5-476

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