The research of adaptive weighted congestion control in MPTCP

Abstract

As the traditional TCP which has greatly restricted is no longer able to meet the requirements of the existing data transmittal. so Multipath Transport Protocol is proposed. Focus on the issue of fairness on the bottleneck link in multipath transmission, and analyzes the limitations of the algorithms of EWTCP with equal round-trip time, We investigate a congestion control scheme that addresses this problem with the adaptive weighted congestion control approach(AWTCP). In our scheme, an According to the simulation experiments by NS2 show that when RTT changes, AWTCP algorithm also able to adaptive changes the weight to each sub-flow, end-to-end connection that uses flows along multiple paths can fairly compete with TCP flows at the shared bottleneck.