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A Simulated Annealing Heuristic for a Branch and Price-Based Routing and Spectrum Allocation Algorithm in Elastic Optical Networks

  • Mirosław KlinkowskiEmail author
  • Krzysztof Walkowiak
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9375)

Abstract

In the paper we focus on developing an efficient algorithm capable of producing optimal solutions to the problem of routing and spectrum allocation (RSA) – a basic optimization problem in elastic optical networks. We formulate the problem as a mixed-integer program and we solve it using a branch and price (BP) algorithm. With the aim to improve the performance of BP, we enhance it with a simulated annealing-based RSA heuristic that is employed in the search for upper bound solutions. The results of numerial experiments show that the heuristic allows to decrease significantly the time required to solve the problem.

Keywords

Simulated annealing Elastic optical networks Routing and spectrum allocation Mixed-integer programming Branch and price 

Notes

Acknowledgment

This work was supported by the Polish National Science Centre (NCN) under Grant DEC-2012/07/B/ST7/01215 and by the FP7 project IDEALIST (grant no. 317999)

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Department of Transmission and Optical TechnologiesNational Institute of TelecommunicationsWarsawPoland
  2. 2.Department of Systems and Computer NetworksWroclaw University of TechnologyWroclawPoland

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