Performance Analysis of All-Optical WDM Network with Wavelength Converter Using Erlang C Traffic Model

Abstract

In this paper we have analyzed the performance of an all-optical WDM network for different parameters, such as number of channels, number of wavelengths associated, number of hops between source to destination etc. To establish a light path between two nodes wavelength continuity is a big constraint and to avoid this problem either wavelength converter or optical delay line or both may be used. Wavelength converter will convert the wavelength of the incoming signal into a desired wavelength at the output and the optical delay line will hold the incoming signal for a certain time. In this paper we considered that the network is equipped with wavelength converter and the traffic through the network is Erlang-C type. A mathematical model for the same has been devised and its performance has been analyzed with an investigation on collective impacts of various traffic parameters on transmission.