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TCP Performance Evaluation in Wireless Mesh Networks using Packet Aggregation
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (Datavetenskap)ORCID-id: 0000-0002-4366-6625
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Centrum för HumanIT. (DISCO)ORCID-id: 0000-0002-9446-8143
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (Datavetenskap)ORCID-id: 0000-0001-7311-9334
2012 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
Abstract [en]

Wireless Mesh Networks (WMNs) have attracted attention as a way to provide alternative wireless Internet connectivity. In a WMN, access points communicate with each other wirelessly, forming a wireless mesh backbone network. One major problem in WMNs is low performance due to MAC and PHY layer overhead for transmission of small packets. Around 44 percent of the packets in the Internet are smaller than 100 bytes and a majority of these packets are TCP packets. The capacity of WMNs can therefore be increased significantly by packet aggregation (concatenation) of TCP packets. In this paper, we evaluate the impact of packet aggregation on TCP performance in WMNs. Using both synthetic and trace based traffic distributions we demonstrate that packet aggregation can not only increase capacity for TCP in such networks but also reduce round trip times.

sted, utgiver, år, opplag, sider
2012.
Emneord [en]
TCP, packet aggregation, Wireless Mesh Networks, performance evaluation, simulation, packet concatenation
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-15600OAI: oai:DiVA.org:kau-15600DiVA, id: diva2:567789
Tilgjengelig fra: 2012-12-06 Laget: 2012-11-14 Sist oppdatert: 2018-07-23bibliografisk kontrollert
Inngår i avhandling
1. Transport-Layer Performance in Wireless Multi-Hop Networks
Åpne denne publikasjonen i ny fane eller vindu >>Transport-Layer Performance in Wireless Multi-Hop Networks
2013 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
Karlstad: Karlstads universitet, 2013. s. 71
Serie
Karlstad University Studies, ISSN 1403-8099 ; 2013:1
Emneord
TCP, MPTCP, transport protocols, packet aggregation, multi-path routing, reordering, wireless multi-hop networks, tactical MANET, mobile ad hoc networks, wireless mesh networks
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
urn:nbn:se:kau:diva-15603 (URN)978-91-7063-473-4 (ISBN)
Disputas
2013-03-04, 1B 364, Fröding, Karlstads Universitet, Karlstad, 10:15 (engelsk)
Opponent
Veileder
Merknad

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

Tilgjengelig fra: 2013-02-08 Laget: 2012-11-14 Sist oppdatert: 2018-07-23bibliografisk kontrollert

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