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Cross-layer adaptation for TCP-based applications in WCDMA systems
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
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2005 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we consider TCP-based applications over a high bandwidth wireless channel, such as the High-Speed Downlink Packet Access (HSDPA) channel in aWCDMAsystem, in two setups: a nominal one that employs end-to-end TCPReno and a new one that employs Cross-Layer Adaptation (CLA) in the form of Radio Network Feedback (RNF). For theCLAsetup, the Radio Resource Management unit in the Radio Network Controller (RNC) provides a proxy with reports on the radio link bandwidth and the queue level. The proxy transport layer takes appropriate actions on these reports. By doing so, it utilizes the air-interface spectrum more efficiently and keeps the layer-2 queue in the RNCclose a predetermined level. These new control mechanisms are evaluated through ns-2 simulations. In a number of realistic use cases it is shown that the new CLAsetup reduces the time to serve users, and substantially increases the radio link utilization and decreases the required buffer size in the RNC.

Place, publisher, year, edition, pages
2005.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-84707OAI: oai:DiVA.org:kth-84707DiVA: diva2:499544
Conference
IST Mobile & Wireless Communications Summit, Dresden, Germany
Note

QC 20120217

Available from: 2012-02-17 Created: 2012-02-13 Last updated: 2012-09-21Bibliographically approved

Open Access in DiVA

network_ist05(183 kB)298 downloads
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File name FULLTEXT01.pdfFile size 183 kBChecksum SHA-512
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Type fulltextMimetype application/pdf

Authority records BETA

Johansson, Karl H.

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Cabrera Molero, InésMöller, NielsFlärdh, OscarJohansson, Karl H.
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf