Optical DiffServ in FWM Impaired Dynamic Optical Networks

Optical Quality of Service (QoS) for different classes of service in dynamic transparent optical networks is here addressed through three Four Wave Mixing (FWM)-aware algorithms. The traffic classes differ in quality attributes, namely, transmission Bit Error Rate (BER) and blocking probability. The algorithms are tested on two mesh topologies against offered traffic, different transmitted power and wavelength grid. Results suggest that in order to simultaneously maintain Optical Service Level Agreement (OSLA) and efficient utilization of the resources, there must be some form of Connection Admission Control (CAC) mechanisms to provide class isolation.