Abstract
In this paper we present an integrated packet/flow level modelling approach for analysing flow throughputs and transfer times in IEEE 802.11 WLANs. The packet level model captures the statistical characteristics of the
transmission of individual packets at the MAC layer, while the flow level model takes into account the system dynamics due to the initiation and completion of data flow transfers. The latter model is a processor sharing
type of queueing model reflecting the IEEE 802.11 MAC design principle of distributing the transmission capacity fairly among the active flows. The resulting integrated packet/flow level model is analytically tractable and
yields a simple approximation for the throughput and flow transfer time. Extensive simulations show that the approximation is very accurate for a wide range of parameter settings. In addition, the simulation study confirms
the attractive property following from our approximation that the expected flow transfer delay is insensitive to the flow size distribution (apart from its mean).
Original language | English |
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Title of host publication | Providing Quality of Service in Heterogeneous Environments |
Subtitle of host publication | Proceedings of the 18th International Teletraffic Congress - ITC-18, 31 August-5 September 2003, Berlin, Germany |
Editors | J. Charzinski, R. Lehnert, P. Tran-Gia |
Publisher | Elsevier |
Pages | 931-940 |
Number of pages | 18 |
ISBN (Print) | 978-0-444-51455-4 |
Publication status | Published - 2003 |
Event | 18th International Teletraffic Congress 2003: Providing QoS in Heterogeneous Environments - Berlin, Germany Duration: 31 Aug 2003 → 5 Sep 2003 Conference number: 18 https://itc-conference.org/congresses/itc18.html |
Publication series
Name | Teletraffic Science and Engineering |
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Publisher | Elsevier |
Volume | 5 |
ISSN (Print) | 1388-3437 |
Conference
Conference | 18th International Teletraffic Congress 2003 |
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Abbreviated title | ITC 2003 |
Country/Territory | Germany |
City | Berlin |
Period | 31/08/03 → 5/09/03 |
Internet address |
Keywords
- Processor sharing models
- Performance analysis
- Wireless LANs
- Quality of Service (QoS)
- IEEE 802.11