A survey on physical layer impairments aware routing and wavelength assignment algorithms in optical networks

By S. Azodolmolky, Miroslaw Klinkowski, E. Marín-Tordera, D. Careglio, J. Solé-Pareta, Ioannis Tomkos. Comput. Networks, 2009

295 citations recorded by the source corpus.

Optical networks are moving from opaque and translucent architectures towards all-optical (transparent) architectures. In translucent architectures a small amount of regeneration (e.g. optical-electronic-optical conversion) is available in the network. The incorporation of the physical impairments in the routing and wavelength assignment (RWA) problem in transparent optical networks has recently received some attention from the research communities. This work compiles a comprehensive survey of the proposed algorithms that address this issue. The physical layer impairments and related classification in optical networks are initially presented followed by physical layer impairments (PLI) constrained and aware RWA algorithms. Algorithmic approach, current PLI-RWA proposals, impact of wavelength conversion on these algorithms, protection and resilience considerations, and proposed extensions to control planes are covered in this work. Further research topics are presented in this study.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/a62f02efa4ad0a3e39d6665f17fb47f53f55a52f

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In Electrical and Electronic Engineering

Citations in the corpus

Software Defined Optical Networks (SDONs): A Comprehensive Survey (2015, background): “These impairments are captured in a Q-factor [345], [346], which is considered in the mapping of virtual links to the underlying physical link resources, such as wavelengths and wavebands.”