Download Concentrator Location in Telecommunication Networks by Hande Yaman PDF

By Hande Yaman

The writer offers polyhedral effects and special resolution tools for situation difficulties encountered in telecommunications yet which even have purposes in different parts like transportation and provide chain administration.

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Extra info for Concentrator Location in Telecommunication Networks

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Chardaire et al. [17] consider the design of a two level network where backbone and access networks are stars. Each terminal is connected to a first level concentrator which is connected to a second level concentrator. All second level concentrators are connected to a central unit. They present two integer programming formulations, a simulated annealing algorithm and a family of cuts. Chung et al. [21] consider the design of a network where the backbone is fully connected and the access networks are stars.

Several linearizations exist in the literature (see Campbell [12], Ebery [29], Ernst and Krishnamoorthy [31], Labbé et al. [53], and Skorin-Kapov et al. [75]). For and in N and and in M, define et al. t. 7) For the case where the routing costs satisfy the triangle inequality, Ernst and Krishnamoorthy [31] propose the following formulation. t. t. 7) 22 CONCENTRATOR LOCATION IN TELECOMMUNICATIONS NETWORKS The formulation by Skorin-Kapov et al. [75] uses variables. Ernst and Krishnamoorthy [31] decrease the size of variables by an order of by modeling the traffic as multicommodity flow aggregated by origins.

Each type of facility has a different cost and capacity. For this problem, Lee [54] proposes an algorithm based on cross decomposition, which combines Benders Decomposition and Lagrangian Relaxation and presents computational results. Amiri [3] studies a variant with delay costs. He models the system as a M/M/1 queuing system and gives two Lagrangian Relaxation based heuristics to solve this problem. 14 CONCENTRATOR LOCATION IN TELECOMMUNICATIONS NETWORKS If reliability is an important issue, it is possible to serve one client by several facilities.

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