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On transmission control protocol synchronization in optical burst switching |
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| Authors: | Oscar González de Dios Anna Maria Guidotti Carla Raffaelli Kostas Ramantas Kyriakos Vlachos |
| Affiliation: | 1. Telefónica I+D, Emilio Vargas 6, Madrid, Spain 2. DEIS – University of Bologna, Viale Risorgimento, 2-40136, Bologna, Italy 3. Computer Engineering and Informatics Department and Research Academic Computer Technology Institute, University of Patras, Patras, Greece |
| Abstract: | This article studies the transmission control protocol (TCP) synchronization effect in optical burst switched networks. Synchronization of TCP flows appears when optical bursts with segments from different flows inside are dropped in the network causing flow congestion windows decreasing simultaneously. In this article, this imminent effect is studied with different assembly schemes and network scenarios. Different metrics are applied to quantitatively assess synchronization with classical assembly schemes. A new burst assembly scheme is proposed that statically or dynamically allocates flows to multiple assembly queues to control flow aggregation within the assembly cycle. The effectiveness of the scheme has been evaluated, showing a good improvement in optical link utilization. |
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