Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/95049
Title: Impairment-aware optimization strategies to dimension optical transport networks with minimal regeneration requirements
Authors: Mendes, Ricardo
Nogueira, Bruna 
Gomes, Teresa 
Martins, Lúcia 
Santos, João
Keywords: Information technology; Electrical engineering; Telecommunication; Electronics and photonics
Issue Date: 2016
Publisher: IEEE
Citation: R. Mendes, B. Nogueira, T. Gomes, L. Martins and J. Santos, "Impairment-aware optimization strategies to dimension optical transport networks with minimal regeneration requirements," 2016 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2016, pp. 67-74, doi: 10.1109/ICUMT.2016.7765334.
Project: UID/MULTI/00308/2013 
Serial title, monograph or event: 8th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)
Place of publication or event: Lisbon (Portugal)
Abstract: Abstract—Physical impairments restrain the maximum length a signal can travel without regeneration. The quality of a signal in optical wavelength division multiplexing (WDM) networks must thus be restored with opto-electro-optical (OEO) regeneration in order to reach its destination. As OEO regenerators are costly devices, sparse deployment using routing optimization is the key to reduce the network cost. This paper tackles the problem of impairment aware routing and wavelength assignment with regeneration placement (RWARP), considering capacity constraints, while focusing on minimizing the number of regenerators. We will firstly, extend an Integer Linear Programming (ILP) formulation for the RWARP problem which provides, when feasible, an optimal solution, and secondly, propose an efficient heuristic. Results show that the heuristic provides satisfactory results, optimal for small problems, in a fraction of the ILP execution time.
URI: http://hdl.handle.net/10316/95049
ISBN: 978-1-4673-8818-4
DOI: 10.1109/ICUMT.2016.7765334
Rights: embargoedAccess
Appears in Collections:I&D INESCC - Artigos e Resumos em Livros de Actas
FCTUC Eng.Electrotécnica - Artigos em Livros de Actas

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