Modeling and Analysis of Wireless Network Segments with aid of Teletraffic Fluid Flow Models

Document type: Researchreports
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Author(s): Markus Fiedler
Title: Modeling and Analysis of Wireless Network Segments with aid of Teletraffic Fluid Flow Models
Translated title: Modellering och analys av trådlösa nätverkssegment med hjälp av teletrafikteoretiska flödesmodeller
Series: Markus Fiedler
Year: 2000
Issue: 5
ISSN: 1103-1581
Organization: Blekinge Institute of Technology
Department: Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling)
Department of Telecommunications and Signal Processing S-372 25 Ronneby
+46 455 780 00
Authors e-mail: markus.fiedler@its.hk-r.se
Language: English
Abstract: The fluid flow model is used to model variable server and link rates, as they appear in mobile channels due to fading, bit error recovery and failed channel reservations. Assuming a Gilbert-Elliott model for the channel, the influence of transmission quality on network Quality of Service (QoS) might be studied.
Thus, the fluid flow model assumes the role of a model that might be used for dimensioning and performance evaluation both at the edge and inside a network. We present a user-friendly, contemporary, flexible, fast and numerically stabilized computing environment for the fluid flow model with a well-known user interface that is able to handle multiple users and that might be used as well for batch processing. We discuss two case studies that emphasize the crucial impact of the relationship between server and source dynamics on QoS.
Summary in Swedish: Inflytandet av kanalkvaliten i ett trådlöst nätsegment på överföringskvaliten på nätverksnivån studeras. Detta sker med hjälp av en (informations-)flödesmodell med tidsvariabelt kapacitet. Resultaten visar att ändringshastigheten av kanalkvaliten innehar ett stort inflytande på kvaliten på nätverksnivan. Dessutom presenterar rapporten ett användarvänligt och numeriskt stabilt mjukvarakoncept for beräkningsverktyget.
Subject: Telecommunications\Modelling of Bursty Traffics
Telecommunications\Fluid Flow Models
Keywords: Fluid flow model, variable server capacity, Gilbert-Elliott model, performance analysis, QoS, software engineering, numerical methods
Note: The analysis part is contained in the COST temporary document 257TD(00)18, see http://www-info3.informatik.uni-wuerzburg.de/cost/html/jan00.html A modified version will be submitted to European Transactions on Telecommunications
URN: urn:nbn:se:bth-00153
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