NDLI: Analysis of flow transfer times in IEEE 802.11 wireless LANs

Content Provider	Springer Nature Link
Author	Litjens, Remco Roijers, Frank Berg, Hans Boucherie, Richard J. Fleuren, Maria
Copyright Year	2004
Abstract	In this paper we present an integrated packet/flow level modelling approach for analysing flow throughputs and transfer times inieee 802.11wlans. It captures the statistical characteristics of the transmission of individual packets at themac layer and takes into account the system dynamics due to the initiation and completion of data flow transfers. In particular, at the flow level the system is modelled by a processor sharing type of queue, reflecting theieee 802.11mac design principle of distributing the transmission capacity fairly among the active flows. The 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).Nous présentons dans cet article un modèle intégrant les niveaux paquets et flux, qui permet l’analyse du débit utile des flux et de leur temps de transfert dans des réseaux locaux sans filieee 802.11. Le modèle développé prend en compte les caractéristiques statistiques de la transmission de paquets individuels au niveau de la couchemac, ainsi que la dynamique du système liée à l’initialisation et à la terminaison des transferts de flux de données. Plus précisément, au niveau des flux, le système est modélisé à l’aide d’une file d’attente à processeur partagé, refletant ainsi le partage équitable de la capacité de transmission entre les différents flux actifs, tel que réalisé par la couchemac de l’ieee 802.11. Le modèle à deux niveaux, paquets/flux, peut être résolu analytiquement et fournit une approximation simple du débit utile et du temps de transfert de flux. De nombreuses simulations ont montré que, pour une large gamme de paramètres, l’approximation est très précise. De plus, les résultats de nos simulations vérifient une propriété intéressante découlant de notre approximation à savoir que le delai de transfert moyen d’un flux est indépendant de la distribution des tailles (seule sa moyenne compte).
Starting Page	1407
Ending Page	1432
Page Count	26
File Format	PDF
ISSN	00034347
Journal	Annales Des Télécommunications
Volume Number	59
Issue Number	11-12
e-ISSN	19589395
Language	French
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Réseau local entreprise sans fil Temps parcours Partage ressource Transmission par paquet Accès multiple aléatoire Détection porteuse Détection collision Communications Engineering, Networks Information Systems and Communication Service Signal, Image and Speech Processing Computer Communication Networks Information and Communication, Circuits R & D/Technology Policy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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