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Bit Error Tolerant Multimedia Transport
Karlstads universitet, Institutionen för informationsteknologi. (Distributed Systems and Communication Research Group)ORCID-id: 0000-0003-0368-9221
Karlstads universitet, Institutionen för informationsteknologi. (Distributed Systems and Communication Research Group)ORCID-id: 0000-0001-7311-9334
2004 (engelsk)Inngår i: Perspectives on Multimedia: Communication, Media and Information Technology, Chichester: John Wiley & Sons, 2004, s. 175-191Kapittel i bok, del av antologi (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Chichester: John Wiley & Sons, 2004. s. 175-191
Emneord [en]
real-time transfers; bit error tolerant multimedia transport; TCP and the bit-error tolerant modification TCP-L; UDP Lite; TCP packet loss; Snoop
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-2337DOI: 10.1002/0470868651ISBN: 9780470868638 (tryckt)OAI: oai:DiVA.org:kau-2337DiVA, id: diva2:24676
Tilgjengelig fra: 2009-06-05 Laget: 2009-06-05 Sist oppdatert: 2018-06-04bibliografisk kontrollert
Inngår i avhandling
1. TCP in Wireless Networks: Challenges, Optimizations and Evaluations
Åpne denne publikasjonen i ny fane eller vindu >>TCP in Wireless Networks: Challenges, Optimizations and Evaluations
2005 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

This thesis presents research on transport layer behavior in wireless networks. As the Internet is expanding its reach to include mobile devices, it has become apparent that some of the original design assumptions for the dominant transport protocol, TCP, are approaching their limits. A key feature of TCP is the congestion control algorithm, constructed with the assumption that packet loss is normally very low, and that packet loss therefore is a sign of network congestion. This holds true for wired networks, but for mobile wireless networks non-congestion related packet loss may appear. The varying signal power inherent with mobility and handover between base-stations are two example causes of such packet loss. This thesis provides an overview of the challenges for TCP in wireless networks together with a compilation of a number of suggested TCP optimizations for these environments. A TCP modification called TCP-L is proposed. It allows an application to increase its performance, in environments where residual bit errors normally give a degraded throughput, by making a reliability tradeoff. The performance of TCP-L is experimentally evaluated with an implementation in the Linux kernel. The transport layer performance in a 4G scenario is also experimentally investigated, focusing on the impact of the link layer design and its parameterization. Further, for emulation-based protocol evaluations, controlled packet loss and bit error generation is shown to be an important aspect.

sted, utgiver, år, opplag, sider
Karlstad: Karlstads universitet, 2005
Serie
Karlstad University Studies, ISSN 1403-8099 ; 2005:13
Emneord
Wireless networks, TCP/IP, TCP-L, Network emulation
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
urn:nbn:se:kau:diva-2335 (URN)91-85335-53-3 (ISBN)
Presentation
2005-05-18, Agardsalen, 11D 257, Karlstads universitetKarlstad, 13:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2009-06-05 Laget: 2009-04-08 Sist oppdatert: 2016-10-25bibliografisk kontrollert

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