Throughput improvement of MPTCP communication by bicasting on multihomed network

摘要

With the spread of mobile devices, demands for high speed and stable communication have been growing. However wireless communication has a feature that is susceptible to the surrounding environment. For instance, many packet losses occur caused by the radio wave interference or attenuation. Recent many mobile devices have multiple wireless network interfaces. Multihoming improves throughput by connecting a host to more than one network using multiple network interfaces simultaneously. Although the previous studies of the bicasting on multihomed network indicate throughput improvement using Multihomed Mobile IP or SCTP, these protocols are not widely used. To solve the problem, we focused on Multipath TCP that is one of the transport layer protocols supporting the multihoming. In this paper, we implemented a system that emulates various actual environments of wireless communication and experimented the throughput and the influence effect using the several bicasting methods. As the result, we confirmed that the selective bicasting is the most suitable for throughput improvement in the actual network environments.