OSA's Digital Library

Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 8 — Aug. 1, 2012
  • pp: 639–650

CAPEX Study for a Multilayer IP/MPLS-Over-Flexgrid Optical Network

O. Pedrola, A. Castro, L. Velasco, M. Ruiz, J. P. Fernández-Palacios, and D. Careglio  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 8, pp. 639-650 (2012)
http://dx.doi.org/10.1364/JOCN.4.000639


View Full Text Article

Enhanced HTML    Acrobat PDF (454 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The ever-increasing Internet Protocol (IP) traffic volume has finally brought to light the high inefficiency of current wavelength-routed over rigid-grid optical networks in matching the client layer requirements. Such an issue results in the deployment of large-size, expensive, and power-consuming IP/Multi-Protocol Label Switching (MPLS) layers to perform the required grooming/aggregation functionality. To deal with this problem, the emerging flexgrid technology, allowing for reduced-size frequency grids (usually referred to as frequency slots), has recently attracted much attention among network operators, component and equipment suppliers, and the research community. In this paper, we tackle the multilayer IP/MPLS-over-flexgrid optimization problem. To this end, an integer linear programing formulation and a greedy randomized adaptive search procedure (GRASP) metaheuristic are provided. Using GRASP, we analyze the cost implications that a set of frequency slot widths have on the capital expenditure investments required to deploy such a multilayer network. For the sake of a compelling analysis, exhaustive numerical experiments are carried out considering a set of realistic network topologies, network equipment costs, and traffic instances. Results show that investments in optical equipment capable of operating under slot widths of 12.5 GHz, or even 25 GHz, are more appropriate, given the expected traffic evolution.

© 2012 OSA

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: March 26, 2012
Revised Manuscript: June 12, 2012
Manuscript Accepted: July 7, 2012
Published: July 31, 2012

Citation
O. Pedrola, A. Castro, L. Velasco, M. Ruiz, J. P. Fernández-Palacios, and D. Careglio, "CAPEX Study for a Multilayer IP/MPLS-Over-Flexgrid Optical Network," J. Opt. Commun. Netw. 4, 639-650 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-8-639

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article

OSA is a member of CrossRef.

CrossCheck Deposited