OSA's Digital Library

Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 2 — Feb. 1, 2011
  • pp: 117–126

Service and Resource Differentiation in Shared-Path Protection Environments to Maximize Network Operator’s Revenues

L. Velasco, M. Ruiz, J. Perelló, S. Spadaro, and J. Comellas  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 3, Issue 2, pp. 117-126 (2011)

View Full Text Article

Enhanced HTML    Acrobat PDF (1045 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Network operators are facing hard competition for opportunities in the telecommunications market, forcing network investments to be carefully evaluated before the decision-making process. A great part of core network operators’ revenues comes from the provisioned connectivity services. Taking this premise as our starting point, we first examine the provisioning of differentiated services in current shared-path protection (SPP) environments. This analysis reveals that current resource assignment policies are only able to provide a very poor grade of service to the supported best-effort traffic. Aiming to improve this performance, a novel resource partitioning scheme called diff-WS is proposed, which differentiates those wavelengths supporting each class of service in the network. As a major goal of this paper, the benefits of diff-WS over current resource assignment policies are assessed from an economic perspective. For this purpose, the network operator revenues maximization (NORMA) problem is presented to design the optical network such that the operator’s revenues are maximized. To solve NORMA, we derive statistical models to obtain, given a certain grade of service, the highest traffic intensity for each class of service and resource partitioning scheme. These models turn NORMA into a nonlinear problem, which is finally addressed as an iterative approach, solving an integer linear programming (ILP) subproblem at each iteration. The obtained numerical results on several network topologies illustrate that diff-WS maximizes resource utilization in the network and, thus, the network operator’s profit.

© 2011 OSA

OCIS Codes
(060.4256) Fiber optics and optical communications : Networks, network optimization
(060.4261) Fiber optics and optical communications : Networks, protection and restoration

ToC Category:
Research Papers

Original Manuscript: July 19, 2010
Revised Manuscript: October 15, 2010
Manuscript Accepted: November 5, 2010
Published: January 26, 2011

L. Velasco, M. Ruiz, J. Perelló, S. Spadaro, and J. Comellas, "Service and Resource Differentiation in Shared-Path Protection Environments to Maximize Network Operator’s Revenues," J. Opt. Commun. Netw. 3, 117-126 (2011)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. Ou, J. Zhang, L. H. Sahasrabuddhe, and B. Mukherjee, "New and improved approaches for shared-path protection in WDM mesh networks," J. Lightwave Technol. 22, 1223‒1232 (2004). [CrossRef]
  2. R. Muñoz, R. Casellas, and R. Martinez, "An experimental signalling enhancement to efficiently encompass WCC and backup sharing in GMPLS-enabled wavelength-routed networks," Proc. IEEE ICC, 2008, pp. 5401‒5406.
  3. E. Mannie and D. Papadimitriou, "Recovery (protection and restoration) terminology for generalized multi-protocol label switching (GMPLS)," IETF RFC-4427, 2006.
  4. "Terms and definitions for optical transport networks (OTN)," ITU-T Rec. G.870/Y.1352, 2010.
  5. L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Shared-path protection with extra-traffic in ASON/GMPLS ring networks," J. Opt. Netw. 8, 130‒145 (2009). [CrossRef]
  6. F. Agraz, L. Velasco, J. Perelló, M. Ruiz, S. Spadaro, G. Junyent, and J. Comellas, "Design and implementation of a GMPLS-controlled grooming-capable optical transport network," J. Opt. Commun. Netw. 1, A258‒A269 (2009). [CrossRef]
  7. A. Kodian and W. Grover, "Multiple-quality of protection classes including dual-failure survivable services in p-cycle networks," Proc. IEEE BROADNETS, 2005.
  8. W. Grover and M. Clouqueur, "Span-restorable mesh networks with multiple quality of protection (QoP) service classes," Photon. Netw. Commun. 9, 19‒34 (2005). [CrossRef]
  9. L. Guo, J. Cao, H. Yu, and L. Li, "Path-based routing provisioning with mixed shared protection in WDM mesh networks," J. Lightwave Technol. 24, 1129‒1141 (2006). [CrossRef]
  10. M. Xia, M. Tornatore, C. Martel, and B. Mukherjee, "Service-centric provisioning in WDM backbone networks for the future internet," J. Lightwave Technol. 27, 1856‒1865 (2009). [CrossRef]
  11. C. Pavan, R. Morais, J. Ferreira, and A. Pinto, "Generating realistic optical transport network topologies," J. Opt. Commun. Netw. 2, 80‒90 (2010). [CrossRef]
  12. CPLEX, http://www-01.ibm.com/software/integration/optimization/cplex-optimizer/

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited