Multi-homed devices such as smartphones, tablets and laptops are enabled with multiple heterogeneous interfaces available for transmission. Those interfaces can be utilized for simultaneous transmission of a single TCP flow using Multipath TCP (MPTCP). MPTCP is a protocol that is designed to increase end-to-end throughput and reliability of communications by splitting data through multiple parallel paths. Although delay in MPTCP enhanced significantly in the recent years, high number of data transmissions remains an issue. In this paper, we reduce MPTCP delay by reducing the number of transmissions using Opportunistic Routing (OR) technique. OR is a routing model used to increase the delivery rate and reliability of data transmission in wireless networks by using the broadcasting method. This enables each subflow data to be delivered by multiple relays. We adapted OR on a number of MPTCP protocols namely, traditional MPTCP, Multipath TCP Traffic Splitting Control (MPTCP-TSC) and Redundant MPTCP (ReMP TCP) in an Internet of Things (IoT) environment. The results show that OR-based MPTCP schemes outperform existing schemes. We further compared the OR-based MPTCP protocols in terms of startup delay and energy efficiency. We found that ReMP TCP is better than other schemes in all scenarios.

智能手机、平板电脑和笔记本电脑等多宿主设备具有多个可用于传输的异构接口。这些接口可用于使用多路径 TCP (MPTCP) 同时传输单个 TCP 流。MPTCP 是一种协议，旨在通过将数据拆分到多个并行路径来提高端到端的吞吐量和通信的可靠性。尽管近年来 MPTCP 的延迟显着增加，但大量数据传输仍然是一个问题。在本文中，我们通过使用机会路由 (OR) 技术减少传输次数来减少 MPTCP 延迟。OR是一种路由模型，用于通过广播方式提高无线网络中数据传输的传递率和可靠性。这使得每个子流数据能够由多个中继传递。我们对许多 MPTCP 协议进行了 OR 调整，即物联网 (IoT) 环境中的传统 MPTCP、多路径 TCP 流量拆分控制 (MPTCP-TSC) 和冗余 MPTCP (ReMP TCP)。结果表明，基于 OR 的 MPTCP 方案优于现有方案。我们在启动延迟和能源效率方面进一步比较了基于 OR 的 MPTCP 协议。我们发现 ReMP TCP 在所有场景中都优于其他方案。我们在启动延迟和能源效率方面进一步比较了基于 OR 的 MPTCP 协议。我们发现 ReMP TCP 在所有场景中都优于其他方案。我们在启动延迟和能源效率方面进一步比较了基于 OR 的 MPTCP 协议。我们发现 ReMP TCP 在所有场景中都优于其他方案。