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An Exact Algorithm for the Minimal Cost Gateways Location, Capacity and Flow Assignment Problem in Two-Level Hierarchical Wide Area Networks

  • Przemyslaw Ryba
  • Andrzej Kasprzak
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4707)

Abstract

In the paper the problem of designing two-level hierarchical structure of wide area network (WAN) is considered. The goal is to select gateways location, channel capacities and flow routes in order to minimize total cost of leasing capacities of channels of 2nd level network, subject to constraint on maximal acceptable value of average packet delay in hierarchical network. An exact algorithm is proposed. Some results of computational experiments are reported. Based on computational experiments, several properties of the considered problem, important from practical point of view, are formulated.

Keywords

WAN Hierarchical Network Algorithm Branch and Bound 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Przemyslaw Ryba
    • 1
  • Andrzej Kasprzak
    • 1
  1. 1.Wroclaw University of Technology, Chair of Systems and Computer Networks, Wybrzeze Wyspianskiego 27, 50-370 WroclawPoland

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