Indian Journal of Science and Technology
DOI: 10.17485/ijst/2018/v11i22/118109
Year: 2018, Volume: 11, Issue: 22, Pages: 1-8
Original Article
William S. Puche1 , Juan C. Vesga2 and Javier E. Sierra3
1Faculty of Engineering, Politecnico Colombiano Jaime Isaza Cadavid, Carrera 48 # 7-151, Medellin, Colombia; [email protected]
2Escuela de Ciencias Basic as Tecnologia e Ingenieria (ECBTI), Universidad Nacional Abierta y a Distancia; Carrera 27 Nro. 40-43. Bucaramanga, Colombia; [email protected]
3Faculty of Engineering, Universidad de Sucre, Cra 28 # 5-267, Sincelejo, Colombia; [email protected]
*Author for correspondence
William S. Puche,
Faculty of Engineering, Politecnico Colombiano Jaime Isaza Cadavid, Carrera 48 # 7-151, Medellin, Colombia; [email protected]
Objectives: The current technologies of wavelength routing and allocation of available for WDM networks are no longer applicable in Elastic Optical Networks (EON), since all their connections are allocated in a fixed manner, as provided for ITU. Therefore, the topic concerning routing and allocation of resources in EON is relevant given the growth projected in web traffic. This survey includes the evolution, main characteristics, and the process of routing and allocation of wavelengths required by EON. Methodology: The processes of allocation of sub-wavelengths and those of super-wavelengths are presented, as well as the multiple storage for different transmission rates and the principle of spectral contiguity. The process of routing and allocation taking OFMD into account is explained. Findings: In this study, we present a survey with routing and allocation techniques of wavelengths that improve the spectral efficiency of EON. Application/Improvements: This survey provides a wide knowledge on the methods to improve the spectral efficiency in EON. Such efficiency can promote an advance in new routing and allocation techniques for the optical transport networks.
Keywords: Elastic Optical Networks, EON, Optical Networks, Routing, WDM
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