The concurrent use of a few transmission channels offered by the multipath version of the TCP protocol (MPTCP) becomes a widely accepted remedy for the quality of service and reliability issues. However, the common approaches to the multipath transfer organization do not give sufficient attention to the energy aspects, which are crucial for the resource-constrained devices in the Internet of Things domain. In this paper, a systematic tuning methodology of the MPTCP architectural modules – targeting the energy expenditure – is developed. By adopting a formal optimization approach, a new Scheduler, and a new Path Manager that promote conservative energy usage are designed. The proposed ‘green’ modules versions do not augment the protocol complexity. Next, explicit guidelines for the selection of the TCP variant to be used at the individual paths are provided. As confirmed by experiments involving physical devices and real networks, the established framework reduces the amount of dissipated energy by several percent (up to 50%) with respect to the default one. As a beneficial side-effect, the transmission throughput is increased and the protocol delay shortened in the uncertain networking conditions typical of industrial settings.

同时使用由TCP协议（MPTCP）的多路径版本提供的几个传输通道已成为服务质量和可靠性问题的广泛接受的补救措施。但是，多路径传输组织的通用方法并未充分关注能源方面，这对于物联网领域中资源受限的设备至关重要。在本文中，针对能源消耗开发了MPTCP体系结构模块的系统调整方法。通过采用正式的优化方法，新的调度程序和新的路径管理器设计可以促进保守的能源使用。建议的“绿色”模块版本不会增加协议的复杂性。接下来，提供了用于选择在各个路径上使用的TCP变体的明确指南。正如通过涉及物理设备和真实网络的实验所证实的那样，相对于默认值，已建立的框架将耗散的能量量减少了百分之几（最多50％）。作为有益的副作用，在工业环境中典型的不确定网络条件下，传输吞吐量增加，协议延迟缩短。