Asian Journal of Engineering and Technology Innovation

Asian Journal of Engineering and Technology Innovation

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Survey on Different Routing and Wavelength Assignment Techniques in WDM Optical Networks

Shashma. M, Shrikant S Tangade

1Reva Institute of Technology and Management, Rukmini Knowledge Park, Kattigenahalli, Yelahanka, Near Border Security Bustop, Bengaluru, Karnataka-560064, India.
2Indian Institute of Science, C V Raman Ave, Bengaluru, Karnataka 560012, India.

Abstract

In Wavelength Division Multiplexing (WDM) the method used to build a light-path connection from a source node to a destination node is called Routing technique. An optical signal quality decreases as it travel through the network due to the physical layer impairments. The light path in wavelength division multiplexed optical networks establishes a connection from source to the destination node by carrying out electronic transition in between the nodes. The primary goal of Routing and Wavelength Assignment (RWA) problem is to increase the number of calls or connection links efficiently by selecting the best route from the available routes. Routing and Wavelength Assignment is a challenging topic in WDM optical networks even we have many algorithms available for minimizing the blocking probability. Here in our work we are providing a literature survey on Routing and Wavelength Assignment techniques in WDM networks and Finally, we will develop a new Routing and Wavelength Assignment algorithm that is going to improve the performance in the network and reduces the Blocking Probability in WDM optical networks.

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