TCP over OBS边缘节点重传机制的研究

ACK retransmission scheme on TCP over OBS networks

使用传输控制协议(TCP)的拥塞控制机制在传统互联网技术中是解决问题的很好方法。然而在面对新型的光网络技术OBS网络,简单地采用TCP技术因受到OBS自身特性的影响,性能表现不佳,吞吐量低下。为此,通过对OBS技术和TCP拥塞控制机制深入的研究,提出一种基于OBS边缘节点的ACK重传机制来提升TCP over OBS性能的方法,提高OBS网络吞吐量。

TCP congestion control works well at traditional networks,but it has some problems when facing the new technology OBS networks.In this paper we proposed an ACK retransmission scheme which works at the edge nodes of OBS networks to improve the TCP performance.The ACK retransmission scheme resolves the low TCP throughput due to the conflict between the bufferless nature of OBS networks and TCP congestion control.