Capacity enhancement of Fiber using Proposed Wavelength Assignment Scheme

In WDM network, routing and wavelength assignment schemes plays paramount role in allocation and utilization of available spectrum efficiently. Various wavelength assignment schemes such as least used, most used, adjacent are employed in present day WDM (wavelength division multiplexing) network to route and establish lightpath between source and destination such that it minimizes cost and network delay of the system. In this paper, proposed FWM (four wave mixing) aware fixed wavelength assignment scheme is investigated and is compared with other fixed channel assignment scheme known as adjacent channel assignment scheme. Until the network channels are not at full load, the enhancement in performance of link with the use of FWM aware channel wavelength assignment scheme is utilized opportunistically to send more data. The enhancement in capacity is clearly presented during the comparison of proposed wavelength assignment scheme with that of adjacent scheme in the results and discussion section.