An Integrated Survey on Routing Wavelength Assignment in Optical Networks

Provided by: SSRG International Journals
Topic: Networking
Format: PDF
Wavelength routing networks have two main problems: network design (fiber topology) and traffic requirements (traffic matrix). The network design problem is divided into Light path Topology Design (LTD) and Routing and Wavelength Assignment (RWA) problems. The RWA problem is more important for increasing the effectiveness of optical networks. The light path routing sub-problem requires determining the physical links for each light path that consist of optical channels. The Wavelength Assignment (WA) sub problem requires determining the wavelength that each light path uses, i.e., assigning a wavelength to each light path in the logical topology such that wavelength restrictions are obeyed for each physical link.

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