Multipath Congestion Control for Shared Bottleneck
Multipath Congestion Control for Shared Bottleneck
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发表时间：
2009
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通讯作者：
Michio Honda;Y. Nishida
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作者：
Michio Honda;Y. Nishida
介绍了在端到端连接中通过多条不同路径传输数据的多路径传输协议。然而，他们在公平方面存在问题。当沿着几个路径的传输共享相同的瓶颈链路时，多路径连接比竞争的常规TCP流获得更高的吞吐量，因为它使用与TCP相同的算法对每个路径执行拥塞控制。我们研究了一个用加权拥塞控制方法解决这个问题的拥塞控制方案。在我们的方案中，使用沿多个路径的流的端到端连接可以在共享瓶颈处与TCP流公平竞争。我们的方案还最大限度地利用了不同的路径特性，如带宽容量和RTT。仿真结果表明，基于该方案的多个流束可以在共享瓶颈处与TCP流公平竞争。
Multipath transport protocols, which transmit data over multiple distinct paths in an end-to-end connection are introduced. However, they have a problem in terms of fairness. When the transmissions along several paths share the same bottleneck link, the multipath connection receives higher throughput than a competing regular TCP flow, because it executes congestion control per path with the same algorithm as TCP. We investigate a congestion control scheme that addresses this problem with the weighted congestion control approach. In our scheme, an end-to-end connection that uses flows along multiple paths can fairly compete with TCP flows at the shared bottleneck. Our scheme also maximizes the utilization of different path characteristics, such as bandwidth capacity and RTT. Our simulation results show that a bundle of multiple flows based on our scheme fairly competes with TCP flows at the shared bottleneck.