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Combining Multi-Path Forwarding and Packet Aggregation for Improved Network Performance in Wireless Mesh Networks
Computer Science Department, University “Federico II” of Naples, Via Claudio 21, 80125 Naples, Italy.
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. (Datavetenskap)ORCID-id: 0000-0002-4366-6625
Computer Science Department, University “Federico II” of Naples, Via Claudio 21, 80125 Naples, Italy.
Computer Science Department, University “Federico II” of Naples, Via Claudio 21, 80125 Naples, Italy.
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2014 (Engelska)Ingår i: Computer Networks, ISSN 1389-1286, E-ISSN 1872-7069, Vol. 68, s. 26-37Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Wireless mesh networks (WMNs) based on the IEEE 802.11 standard are becoming increasingly popular as a viable alternative to wired networks. WMNs can cover large or difficult to reach areas with low deployment and management costs. Several multi-path routing algorithms have been proposed for such kind of networks with the objective of load balancing the traffic across the network and providing robustness against node or link failures. Packet aggregation has also been proposed to reduce the overhead associated with the transmission of frames, which is not negligible in IEEE 802.11 networks. Unfortunately, multi-path routing and packet aggregation do not work well together, as they pursue different objectives. Indeed, while multi-path routing tends to spread packets among several next-hops, packet aggregation works more efficiently when several packets (destined to the same next-hop) are aggregated and sent together in a single MAC frame. In this paper, we propose a technique, called aggregation aware forwarding, that can be applied to existing multi-path routing algorithms to allow them to effectively exploit packet aggregation so as to increase their network performance. In particular, the proposed technique does not modify the path computation phase,but it just influences the forwarding decisions by taking the state of the sending queues into account.We demonstrated our proposed technique by applying it to Layer-2.5, a multi-path routing and forwarding paradigm for WMNs that has been previously proposed.We conducted a thorough performance evaluation by means of the ns-3 network simulator, which showed that our technique allows to increase the performance both in terms of network throughput and end-to-end delay.

Ort, förlag, år, upplaga, sidor
Elsevier, 2014. Vol. 68, s. 26-37
Nyckelord [en]
Wireless Mesh Network, Multi-path routing, Packet Aggregation
Nationell ämneskategori
Kommunikationssystem
Forskningsämne
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-16113DOI: 10.1016/j.comnet.2014.01.006ISI: 000335610700003OAI: oai:DiVA.org:kau-16113DiVA, id: diva2:575006
Tillgänglig från: 2012-12-07 Skapad: 2012-12-07 Senast uppdaterad: 2018-07-23Bibliografiskt granskad
Ingår i avhandling
1. Transport-Layer Performance in Wireless Multi-Hop Networks
Öppna denna publikation i ny flik eller fönster >>Transport-Layer Performance in Wireless Multi-Hop Networks
2013 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
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.

Ort, förlag, år, upplaga, sidor
Karlstad: Karlstads universitet, 2013. s. 71
Serie
Karlstad University Studies, ISSN 1403-8099 ; 2013:1
Nyckelord
TCP, MPTCP, transport protocols, packet aggregation, multi-path routing, reordering, wireless multi-hop networks, tactical MANET, mobile ad hoc networks, wireless mesh networks
Nationell ämneskategori
Kommunikationssystem
Forskningsämne
Datavetenskap
Identifikatorer
urn:nbn:se:kau:diva-15603 (URN)978-91-7063-473-4 (ISBN)
Disputation
2013-03-04, 1B 364, Fröding, Karlstads Universitet, Karlstad, 10:15 (Engelska)
Opponent
Handledare
Anmärkning

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

Tillgänglig från: 2013-02-08 Skapad: 2012-11-14 Senast uppdaterad: 2018-07-23Bibliografiskt granskad

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Karlsson, JonasKassler, AndreasBrunström, Anna

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