AuthorsS. Ferlin, T. Dreibholz and Ö. Alay
TitleTackling the Challenge of Bufferbloat in Multi-Path Transport Over Heterogeneous Wireless Networks
AfilliationCommunication Systems, , Communication Systems
Project(s)The Center for Resilient Networks and Applications
Publication TypeProceedings, refereed
Year of Publication2014
Conference NameProceedings of the IEEE/ACM International Symposium on Quality of Service (IWQoS)
Date PublishedMay
Place PublishedHong Kong/People's Republic of China

Today, most of the smart phones are equipped with two network interfaces: Mobile Broadband (MBB) and Wireless Local Area Network (WLAN). Multi-path transport protocols provide increased throughput or reliability, by utilizing these interfaces simultaneously. However, multi-path transmission over networks with very different QoS characteristics is a challenge. In this paper, we studied Multi-Path TCP\~(MPTCP) in heterogeneous networks, specifically MBB networks and WLAN. We first investigate the effect of bufferbloat in MBB on MPTCP performance. Then, we propose a bufferbloat mitigation algorithm: Multi-Path Transport Bufferbloat Mitigation (MPT-BM). Using our algorithm, we conduct experiments in real operational networks. The experimental results show that MPT-BM outperforms the current MPTCP implementation by increasing the application goodput quality and decreasing MPTCP's buffer delay, jitter and buffer space requirements.

Citation KeySimula.simula.2722