Title:

Hierarchical Multiobjective Routing Model in MPLS Networks with Two Service Classes – A Comparison Case Study, Journal of Telecommunications and Information Technology, 2012, nr 2

Creator:

Girão-Silva, Rita ; Craveirinha, José ; Clímaco, João

Subject and Keywords:

multiobjective optimization ; simulation ; telecommunication networks ; routing models

Description:

A two-level hierarchical multicriteria routing model for multiprotocol label switching networks with two service classes (QoS, i.e., with quality of service requirements, and best effort services) and alternative routing is reviewed in this paper. A heuristic resolution approach, where nondominated solutions are obtained throughout the heuristic run and kept in an archive for further analysis is also reviewed. In this paper, an extensive analysis of the application of this procedure to two reference test networks for various traffic matrices is presented. Also a comparison of the results of our method with a lexicographic optimization approach based on a multicommodity flow formulation using virtual networks is carried out. Finally, results of a stochastic discrete event simulation model developed for these networks will be shown to illustrate the effectiveness of the resolution approach and to assess the inaccuracies of the analytic results.

Publisher:

Instytut Łączności - Państwowy Instytut Badawczy, Warszawa

Date:

2012, nr 2

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności