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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 9 — Sep. 1, 2012
  • pp: 681–691

Converged Optical Network and Data Center Virtual Infrastructure Planning

Konstantinos N. Georgakilas, Anna Tzanakaki, Markos Anastasopoulos, and Jens Myrup Pedersen  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 4, Issue 9, pp. 681-691 (2012)

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This paper presents a detailed study of planning virtual infrastructures (VIs) over a physical infrastructure comprising integrated optical network and data center resources with the aim of enabling sharing of physical resources among several virtual operators and services. Through the planning process, the VI topology and virtual resources are identified and mapped to the physical resources. Our study assumes a practical VI demand model without any in advance global knowledge of the VI requests that are handled sequentially. Through detailed integer linear program modeling, two objective functions—one that minimizes the overall power consumption of the infrastructure and one that minimizes the wavelength utilization—are compared. Both are evaluated for the virtual wavelength path and wavelength path optical network architectures. The first objective results in power consumption savings and the two optical network architectures provide similar performances. However, the trend changes for higher load values, due to the inefficient wavelength utilization that the first objective leads to. Finally, we compare the virtual infrastructures created by the two objectives through online traffic provisioning simulations. The objective minimizing wavelength utilization results in VIs suffering higher request blocking compared to the VIs created by the objective minimizing the overall power consumption.

© 2012 OSA

OCIS Codes
(060.4254) Fiber optics and optical communications : Networks, combinatorial network design
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Regular Papers

Original Manuscript: February 23, 2012
Revised Manuscript: July 16, 2012
Manuscript Accepted: July 23, 2012
Published: August 20, 2012

Konstantinos N. Georgakilas, Anna Tzanakaki, Markos Anastasopoulos, and Jens Myrup Pedersen, "Converged Optical Network and Data Center Virtual Infrastructure Planning," J. Opt. Commun. Netw. 4, 681-691 (2012)

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