A Novel Fast Distributed Dynamic Lightpath Setup Algorithm Based on Quick Release Mechanism of Router

摘要

This paper presents a novel optimized distributed dynamic wavelength assignment algorithm for the wavelength routing optical network(WRON) based on the revised result of reference: Fast Distributed Dynamic Lightpath Setup Algorithm(FDDLSA) . By adopting two kinds of new optical link release mechanisms (ahead and timeout release) in the process of networks nodes setting up a link, the new algorithm can reduce the blocking probability significantly and release the burden of a router. The effectiveness of the algorithms was verified through the simulation on NSF net (Nature and Science Foundation) of USA: it can reduce the blocking probability 8% less than reference [5]'s algorithm, at the same time it can reduce the optical path setup time greatly.