Fault Tolerant Dense Wavelength Division Multiplexing Optical Transport Networks

Autor:	Yousef S. Kavian, Wei Ren, Majid Naderi, Mark S. Leeson, Evor L. Hines
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	dedicated path protection architecture and genetic algorithm DWDM fault tolerant networks optical networks Telecommunication TK5101-6720 Information technology T58.5-58.64
Zdroj:	Journal of Telecommunications and Information Technology, Iss 1 (2023)
Druh dokumentu:	article
ISSN:	1509-4553 1899-8852
DOI:	10.26636/jtit.2009.1.916
Popis:	Design of fault tolerant dense wavelength division multiplexing (DWDM) backbones is a major issue for service provision in the presence of failures. The problem is an NP-hard problem. This paper presents a genetic algorithm based approach for designing fault tolerant DWDM optical networks in the presence of a single link failure. The working and spare lightpaths are encoded into variable length chromosomes. Then the best lightpaths are found by use of a fitness function and these are assigned the minimum number of wavelengths according to the problem constraints using first-fit (FF) algorithm. The proposed approach has been evaluated for dedicated path protection architecture. The results, obtained from the ARPA2 test bench network, show that the method is well suited to tackling this complex and multi-constraint problem.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/850fe0185a6a47938df2502f84e949dd Zobrazit plný text záznamu View record in DOAJ