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Large-scale hierarchical networks: how to compute an optimal architecture?

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3 Author(s)
Bley, A. ; Zuse Inst., Berlin, Germany ; Koch, T. ; Wessaly, R.

In this article, we present a mathematical model and an algorithm to support one of the central strategic planning decisions of network operators: How to organize a large number of locations into a hierarchical network? We propose a solution approach that is based on mixed-integer programming and Lagrangian relaxation techniques. As major advantage, our approach provides not only solutions but also worst-case quality guarantees. Real-world scenarios with more than 750 locations have been solved within 30 minutes to less than 1% off optimality.

Published in:

Telecommunications Network Strategy and Planning Symposium. NETWORKS 2004, 11th International

Date of Conference:

13-16 June 2004