The effect of Stimulated Raman Scattering (SRS) in Routing and Wavelength Assignment (RWA) in WDM mesh and ring topologies

In this paper, the impact of Stimulated Raman Scattering (SRS) in Routing and Wavelength Assignment (RWA) is performance analyzed in three different setting in the number of hops in routes using fixed shortest path routing in 8-nodes mesh and 8-nodes ring topologies. Performance result shows the impact of SRS is more apparent in 8-nodes ring topology compared to 8-nodes mesh topology when the number of optical channel is 32 for all the setting of the number of hops in routes. Whereas when the number of channels is 16, the impact of SRS is not much different in both topologies. Furthermore, the impact of SRS is more apparent in 4-hops setting compared to 2-hops and 3-hops setting used in the routes. It suggests that in order to support more traffic request by higher optical channel, the acceptable connection due to SRS depletion to be established depends on the number of hops used in routing scheme indirectly depends on different network topology.