### Abstract

WDM optical networks represent the direction to the future high capacity wide-area network applications. By reconfiguring the logical topology, network resources utilization can be optimized corresponding to the traffic pattern changes. From the viewpoint of network operation, the complexity of reconfiguration should be minimized as well. In this paper we consider the logical topology reconfiguration in arbitrary topology IP over WDM networks with balance between network performance and operation complexity. The exact formulation of the logical topology reconfiguration problem is usually given as a Mixed Integer Linear Programming, but it grows intractable with increasing size of network. Here we propose a simulated annealing approach to determine the target topology with a smaller logical topology change and satisfy the performance requirement. A threshold on the congestion performance requirement is used to balance the optimal congestion requirement and operation complexity by tuning this threshold to a feasible value. For an effective solution discovery, a two-stage SA algorithm is developed for multiple objectives optimization.

Original language | English |
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Title of host publication | Networks 2004 - 11th International Telecommunications Network Strategy and Planning Symposium |

Editors | H. Kaindl |

Pages | 327-332 |

Number of pages | 6 |

Publication status | Published - 2004 Oct 11 |

Event | Networks 2004 - 11th International Telecommunications Network Startegy and Planning Symposium - Vienna, Austria Duration: 2004 Jun 13 → 2004 Jun 16 |

### Publication series

Name | Networks 2004 - 11th International Telecommunications Network Strategy and Planning Symposium |
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### Conference

Conference | Networks 2004 - 11th International Telecommunications Network Startegy and Planning Symposium |
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Country | Austria |

City | Vienna |

Period | 04/6/13 → 04/6/16 |

### ASJC Scopus subject areas

- Engineering(all)

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## Cite this

*Networks 2004 - 11th International Telecommunications Network Strategy and Planning Symposium*(pp. 327-332). (Networks 2004 - 11th International Telecommunications Network Strategy and Planning Symposium).