Optimized WDM network with consideration of lesser blocking probability & shortest path selection

In Present Era, Optical networks satisfy the requirement of high transmission bandwidth by providing several T bits/s transmissions. Need of high data rates increasing continuously as data traffic continues to increase at the rapid rate of 40 % to 70 % per year. WDM (Wavelength Division Multiplexing) based Optical networks purposes the solution to meet the demands of high bit rate and inline amplifiers to increase transmission distance in order to efficiently utilize the Fiber Capacities by dividing its huge bandwidth into a set of disjoint wavelength bands. The solution can also be cost effective as the existing physical network can be used. In this paper a Fiber Optic Simulator (FOSP) is introduced, used to optimize Physical properties of fiber in order to get high velocity. Further wavelength assignment techniques (First Fit, Random Fit) & WDM networks with wavelength conversion is analyzed in terms of their blocking probability. Analysis shows that WDM networks designed with wavelength converters gives the best performance among all the wavelength assignment techniques. A shortest path algorithm (Dijkastra's algorithm) is followed in order to select shortest path among the network to speed up the data transfer.