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MPTCP PathFinder - finding your ways to aggregated bandwidth
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. (Datavetenskap)
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. (Datavetenskap)ORCID iD: 0000-0002-8731-2482
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. (Datavetenskap)
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (DISCO)ORCID iD: 0000-0002-9446-8143
2012 (English)Report (Other academic)
Abstract [en]

Many  networks are multi-path; mobile devices have multiple interfaces, data centers have redundant paths and ISPs forward traffic over disjoint paths to perform load-balancing. Multi-path TCP (MPTCP) is a new mechanism that transparently divides a TCP connection into subflows and distributes them over a host's network interfaces. While this enables multi-homed systems like e.g. smartphones to use several interfaces and thus different, and mostly disjoint, network paths for a single transmission, most end-systems are still single-homed. With one interface, standard MPTCP creates only a single subflow, making single-homed systems unable to benefit from MPTCP's functionality. In this paper we propose PathFinder, an MPTCP extension that tries to estimate the number of subflows required to fully utilize  the network capacity, enabling single-homed hosts to reap the benefits of MPTCP. We evaluate MPTCP with PathFinder and compare its performance to standard MPTCP. The evaluation shows that PathFinder is able to open a limited but sufficient amount of subflows to significantly increase the throughput when compared to using standard MPTCP.

Place, publisher, year, edition, pages
Karlstad: Karlstads universitet, 2012. , 22 p.
Series
Karlstad University Studies, ISSN 1403-8099 ; 2012:59
Keyword [en]
MPTCP, Congestion Control, Wireless Mesh Networks, Multi-Path Routing
National Category
Communication Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-16167ISBN: 978-91-7063-472-7 (print)OAI: oai:DiVA.org:kau-16167DiVA: diva2:576317
Note

E-pub only.

Available from: 2013-01-08 Created: 2012-12-12 Last updated: 2017-12-06Bibliographically approved
In thesis
1. Transport-Layer Performance in Wireless Multi-Hop Networks
Open this publication in new window or tab >>Transport-Layer Performance in Wireless Multi-Hop Networks
2013 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Wireless communication has seen a tremendous growth in the last decades. Continuing on this trend, wireless multi-hop networks  are nowadays used or planned for use in a multitude of contexts, spanning from Internet access at home to emergency situations.

The Transmission Control Protocol (TCP) provides reliable and ordered delivery of a data and is used by major Internet applications such as web browsers, email clients and file transfer programs. TCP traffic is also the dominating traffic type on the Internet. However, TCP performs less than optimal in wireless multi-hop networks due to packet reordering, low link capacity, packet loss and variable delay.

In this thesis, we develop novel proposals for enhancing the network and transport layer to improve TCP performance in wireless multi-hop networks. As initial studies, we experimentally evaluate the performance of different TCP variants, with and without mobile nodes. We further evaluate the impact of multi-path routing on TCP performance and propose packet aggregation combined with aggregation aware multi-path forwarding as a means to better utilize the available bandwidth. The last contribution is a novel extension to multi-path TCP to  enable single-homed hosts to fully utilize the network capacity.

Place, publisher, year, edition, pages
Karlstad: Karlstads universitet, 2013. 71 p.
Series
Karlstad University Studies, ISSN 1403-8099 ; 2013:1
Keyword
TCP, MPTCP, transport protocols, packet aggregation, multi-path routing, reordering, wireless multi-hop networks, tactical MANET, mobile ad hoc networks, wireless mesh networks
National Category
Communication Systems
Research subject
Computer Science
Identifiers
urn:nbn:se:kau:diva-15603 (URN)978-91-7063-473-4 (ISBN)
Public defence
2013-03-04, 1B 364, Fröding, Karlstads Universitet, Karlstad, 10:15 (English)
Opponent
Supervisors
Note

Opponent changed. Prof. C. Lindeman from the University of Leipzig was substituted by Prof. Zhang.

Available from: 2013-02-08 Created: 2012-11-14 Last updated: 2013-02-18Bibliographically approved

Open Access in DiVA

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