Abstract:

To improve performance of distributed control wavelength-routed optical burst switching(WR-OBS) network, a novel parallel burst assembly algorithm based on Internet traffic estimation is proposed. In this algorithm burst assembly and resource reservation are implemented simultaneously. With this mechanism end-to-end delay introduced by burst assembly can be reduced with the time scale of several milliseconds to tens of milliseconds. Simulation result also shows that under light traffic load burst blocking probability can be reduced by 20%. Furthermore, transmission control protocol performance with this algorithm is studied, and simulation result shows that a much better transmission control protocol performance can be achieved compared with traditional wavelength routed optical burst switching network.

Key words: wavelength routed optical burst switching, burst blocking probability, end-to-end delay, transmission control protocol performance