Distributed wavelength assignment protocols with priority for WDM all-optical networks

We propose a new concept for wavelength assignment in WDM all-optical networks-priority-based wavelength assignment. Our priority scheme is protocol-independent and can be easily integrated into any distributed wavelength assignment protocol. The proposed priority scheme has been integrated with the SIR (source initiated reservation) protocol. A new simulation software based on the well-known YACSIM simulation package was developed to show that the extended SIR protocol can improve the efficiency and throughput of WDM optical networks by five to ten percent. The proposed priority scheme should also be applicable to wide-area wavelength routed networks