Performance evaluation of Dynamic Assembly Period algorithm in TCP over OBS networks

摘要

Dynamic Assembly Period (DAP) is a novel assembly algorithm, which is based on the dynamic TCP window. The assembly algorithm can track the variation of the current TCP window aroused by the burst loss events, and update the assembly period dynamically for the next assembly. The analytical model provides the theoretical foundation for the proposed assembly algorithm. Nowadays, there are several kinds of TCP flavors proposed to enhance the performance of TCP, such as Default, Tahoe, Reno, New Reno, SACK, etc., which are adopted in the current internet. In this paper, we evaluated the performance of DAP under the different TCP flavors. The simulation results show that the performance of DAP under Default TCP flavor is the best. The difference in the performance of DAP under such flavors is correlated with the inside mechanism of the flavors. We also compared the performance of DAP and FAP under the same TCP flavor. It indicates that the performance of DAP is better than that of FAP in a wide range of burst loss rate.