Multipath TCP (MPTCP) proxy is a way to provide multipath transmissions for current Internet hosts. However, previous works on MPTCP mainly focus on the scenario where one end of the connection is MPTCP-capable, which is not the case in current networks. In this article, we propose a transparent MPTCP (T-MPTCP) transmission scheme to achieve MPTCP transmission for TCP hosts at both ends. Specifically, T-MPTCP contains two components in the network: an aggregation box at the user side acting as an implicit proxy, and an aggregation server at the server side acting as an explicit proxy. The aggregation server can be deployed in different places of the network for optimized performance, and we thus propose a Proxy Location Selected (PLS) algorithm to determine the best aggregation server placement. To validate our design, T-MPTCP is deployed in a real network for experiments, whose results exhibit higher network throughput under T-MPTCP and further improvement with the PLS algorithm.

中文翻译：

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透明多路径：使用双 MPTCP 代理增强传统 TCP 的传输性能


多路径 TCP (MPTCP) 代理是一种为当前 Internet 主机提供多路径传输的方式。然而，之前关于MPTCP的工作主要集中在连接的一端支持MPTCP的场景，而当前网络中并非如此。在本文中，我们提出了一种透明MPTCP（T-MPTCP）传输方案，以实现两端TCP主机的MPTCP传输。具体来说，T-MPTCP在网络中包含两个组件：用户侧的聚合盒作为隐式代理，以及服务器侧的聚合服务器作为显式代理。聚合服务器可以部署在网络的不同位置以优化性能，因此我们提出了代理位置选择（PLS）算法来确定最佳聚合服务器放置位置。为了验证我们的设计，将T-MPTCP部署在真实网络中进行实验，结果显示T-MPTCP下具有更高的网络吞吐量，并且通过PLS算法得到了进一步的改进。