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The Exact Planning of the GMPLS-based Metro Core Network

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Published/Copyright: April 12, 2011
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Journal of Optical Communications
From the journal Volume 32 Issue 1

Abstract

The continuing rapid increase in the number of wavelengths per fiber will dramatically increase the size of OXCs/ROADMs in the WDM-based metro core networks. This calls for the use of the multi-granular switching concept introduced in Generalized Multiprotocol Label Switching (GMPLS) to avoid the cost explosion of these optical switches. This paper addresses the optimal planning problem of the GMPLS-based (or multi-granular) metro core network by (i) considering the whole traffic flow hierarchy defined in GMPLS, and (ii) maintaining the color-continuity constraint for all optical flows. We call such a planning problem the Routing and Multi-Granular Paths Assignment (RMGPA). The objective of the problem is to minimize the total weighted port count in the metro core network. The problem is formulated as a Mixed Integer Linear Programming (MILP) model. Due to the computational complexity of the problem, the MILP model is solved for small-sized problems.

Keywords.: MILP Formulation; RMGPA Problem; GMPLS Network; Transport Network Planning; Multi-Granular Network; Metro Core Network
Corresponding author: Nabil Naas, School of Information Technology and Engineering, University of Ottawa, K1N 6N5, Canada.
Received: 2010-09-03
Accepted: 2010-10-27
Published Online: 2011-04-12
Published in Print: 2011-April

Copyright © 2011 De Gruyter

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  1. Editorial
  2. A Method to Measure Optical Parameters of the Diffraction Grating Using the Ratio of ±1 Orders Diffraction Efficiencies
  3. The Exact Planning of the GMPLS-based Metro Core Network
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  10. News
https://doi.org/10.1515/joc.2011.001
Keywords for this article
MILP Formulation; RMGPA Problem; GMPLS Network; Transport Network Planning; Multi-Granular Network; Metro Core Network

Articles in the same Issue

  1. Editorial
  2. A Method to Measure Optical Parameters of the Diffraction Grating Using the Ratio of ±1 Orders Diffraction Efficiencies
  3. The Exact Planning of the GMPLS-based Metro Core Network
  4. A New TH-CDMA Scheme for Dispersive Infrared Channel and Its Performance Evaluation
  5. Performance Comparison of BB84 and B92 Satellite-Based Free Space Quantum Optical Communication Systems in the Presence of Channel Effects
  6. Performance Analysis of Free Space Optical Systems in the Presence of Channel Physical Limitations
  7. Power Assigning Method for Increasing the Number of Users in Time-spreading Optical CDMA Systems
  8. Novel Scheme of Multi-Rate Quasi-synchronous Coherent Time-spreading OCDMA System
  9. Information Processing with Length Intervals of Stationary Random Point Processes
  10. News
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