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Closed Loop Aspects of Fluid Flow Model Identification in Congestion Control
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. (System Identification Group)ORCID iD: 0000-0002-9368-3079
2006 (English)In: 14th IFAC Symposium on System Identification / [ed] Brett Ninness, Håkan Hjalmarsson, 2006, 879-884 p.Conference paper, Published paper (Refereed)
Abstract [en]

Fluid flow models have turned out to be instrumental for analysis and synthesis of primal/dual congestion control algorithms which rely on aggregated information from a network path. In particular stability has been analyzed using such models. In network congestion control, validation experiments will with necessity be performed in closed loop since the communication protocol has to be active. Guidelines on how such experiments should be carried out in practice has until now been lacking in the literature. Departing from the theory of modeling for control, we refine a fluid flow model by augmenting the customary model of transport latencies, link price and source control with estimator dynamics and sampling properties. The impact of cross-traffic and changes in network configuration is incorporated as well. Furthermore, we analyze, from a closed-loop perspective, how the network should be excited when validating such models. The resulting identification framework is used for validating the derived model using packet-level experimental data from NS-2 simulations.

Place, publisher, year, edition, pages
2006. 879-884 p.
Keyword [en]
communication protocols, communication networks, identification, closed loop, computer networks
National Category
Control Engineering Communication Systems
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-73575DOI: 10.3182/20060329-3-AU-2901.00139OAI: oai:DiVA.org:kth-73575DiVA: diva2:489020
Conference
14th IFAC Symposium on System Identification, SYSID-2006. Newcastle, Australia. March 29-31, 2006
Note
QC 20120531Available from: 2012-02-02 Created: 2012-02-02 Last updated: 2012-05-31Bibliographically approved

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Hjalmarsson, Håkan

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  • apa
  • harvard1
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  • de-DE
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Output format
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