A Study on retransmission control of multipath-extended TCP

We have proposed DMTCP(Dynamic Multipath TCP) that controls congestion and retransmission in multipath transmission by extended TCP. But we have not consider retransmission control. In this paper, we propose retransmission control method that has retransmission timer, congestion window, transmitted segments list for every path and retransmits using one more path in addition to the path transmitted first. We illustrate this method keeps transmission when it fails retransmission. In addition, We check effectivity and reliability of this method by simulating on paper.