An adaptive data chunk scheduling for concurrent multipath transfer
Lal Pratap Verma, Mahesh Kumar · Computer Standards & Interfaces · 2017
Concurrent Multipath Transfer (CMT) is a transport layer protocol which provides concurrent data transfer over the multiple paths. CMT improves the available bandwidth utilization , fault tolerance , robustness and reliability of the network. However, in multipath data transfer , destination receives out-of-order data chunk due to dissimilar delay and bandwidth of each path. It causes the serious problem of receiver buffer blocking, unwanted congestion window ( cwnd ) reduction and unnecessary retransmission , which significantly degrades the performance of CMT. Thus, this paper proposes an adaptive data chunk scheduling for CMT (A-CMT). The proposed method uses path delay and bandwidth as a factor of data chunk scheduling to adapt path conditions. The simulation results show that proposed method achieves better performance in terms of throughput; file transfer time and congestion window growth. The proposed method improves average throughput up to 13%.