Title: Steady-state throughput discrete model of multipath TCP based on linked increase algorithm

Authors: Hongcheng Huang; Xinran Sun; Min Hu

Addresses: School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; College of Computer Science, Chongqing University, Chongqing 400044, China ' School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China ' School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Abstract: This paper established a discrete model for the steady-state throughput of multipath TCP (MPTCP), which is based on linked increase algorithm (LIA) and is presented to analyse the relationship between subflow performances and throughput capacity under the steady-state bulk transmission of MPTCP data. With consideration of the coupling of subflow congestion windows' changes, the characteristics of subflow in states such as the congestion avoidance, fast recovery timeout retransmission and slow start was analysed. Furthermore, by calculating the expectations of transmitted packet number and transmission duration in a given MPTCP connection, the discrete model of MPTCP steady-state throughput can be established. Simulation results show that the proposed model can achieve the improved accuracy and robustness when predicting the steady-state transmission throughput of MPTCP.

Keywords: congestion control; linked increase algorithm; LIA; Markov regenerative process; multipath TCP; throughput model; discrete model.

DOI: 10.1504/IJCNDS.2018.095361

International Journal of Communication Networks and Distributed Systems, 2018 Vol.21 No.4, pp.528 - 546

Accepted: 03 Feb 2018
Published online: 07 Sep 2018 *

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