Examining the Algorithms used for Routing and Assigning Wavelength in WDM Networks

In today's communication, the telecommunications department is the most challenging, offering the highest amount of bandwidth. In network communication, optical fiber plays a very significant role. Many companies have appeared with the finest prototypes and test rigs to form optical WDM technology. For a specific link request, a wavelength and a path must be allocated in the WDM network. The Routing and Wavelength Assignment (RWA) problem is referred to as the assignment of a wavelength and a path to a link request with accessible resources. The purpose of this article is to examine the algorithms for any WDM network in order to develop efficient wavelength assignment routing protocols. As researchers, we intend to propose a comprehensive literature review in order to develop a new algorithm for efficient allocation and appropriate wavelength usage, as well as the routing of data packets from source to destination in order to overcome all failures. We use simulations and evaluate optic fiber communication methods before allocating, as well as various losses based on dynamic wavelength allocation with minimum and maximum values.