New Path Scheduling Approach for Multipath Transmission Control Protocol

Abstract

A popular transport layer protocol that makes extensive use of multi-path communication technology is called Multi-Path Transmission Control Protocol (MPTCP). Making use of the end-host’s multi-interface capabilities is MPTCP’s primary goal. However, the protocol’s main weakness is lower channel usage suffers from a sharp decline in throughput due to its sudden congestion window (cwnd) growth policy. Furthermore, the performance of MPTCP is significantly reduced when there are many possible channels for transmission because different wireless path parameters such as bandwidth, loss rate (due to congestion or unreliability of the wireless channel), and delay necessitate higher re-ordering at the receiver end. As a result, it causes a significant increase in buffer-blocking and needless retransmissions. Nonetheless, a few strategies that efficiently schedule and distribute the load over accessible, qualifying channels have been proposed. However, our proposed policy takes all these parameters into consideration and the performance has been improved significantly can be seen be the graphs presented in the later section of the paper.