Bandwidth Optimization in Centralized WLANs for Different Traffic Types

Allocating bandwidth between different forms of coexisting traffic (such as web-browsing, streaming, and telephony) within a wireless LAN is a challenging and interesting problem. Centralized coordination functions in wireless LANs offer several advantages over distributed approaches, having the ben...

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Main Authors: R. J. Haines, N. Fanning, T. Lewis, J. Coon
Format: Article
Language:English
Published: SpringerOpen 2007-03-01
Series:EURASIP Journal on Wireless Communications and Networking
Online Access:http://dx.doi.org/10.1155/2007/23917
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author R. J. Haines
N. Fanning
T. Lewis
J. Coon
author_facet R. J. Haines
N. Fanning
T. Lewis
J. Coon
author_sort R. J. Haines
collection DOAJ
description Allocating bandwidth between different forms of coexisting traffic (such as web-browsing, streaming, and telephony) within a wireless LAN is a challenging and interesting problem. Centralized coordination functions in wireless LANs offer several advantages over distributed approaches, having the benefit of a system overview at the controller, but obtaining a stable configuration of bandwidth allocation for the system is nontrivial. We present, review, and compare different mechanisms to achieve this end, and a number of different means of obtaining the configurations themselves. We describe an analytical model of the system under consideration and present two mathematical approaches to derive solutions for any system configuration and deployment, along with an adaptive feedback-based solution. We also describe a comprehensive simulation-based model for the problem, and a prototype that allows comparison of these approaches. Our investigations demonstrate that a self-adaptive dynamic approach far outperforms any static scheme, and that using a mathematical model to produce the configurations themselves confers several advantages.
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spelling doaj.art-5d48bdc626be41a3a30325c40cd838ce2022-12-21T18:54:58ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992007-03-01200710.1155/2007/23917Bandwidth Optimization in Centralized WLANs for Different Traffic TypesR. J. HainesN. FanningT. LewisJ. CoonAllocating bandwidth between different forms of coexisting traffic (such as web-browsing, streaming, and telephony) within a wireless LAN is a challenging and interesting problem. Centralized coordination functions in wireless LANs offer several advantages over distributed approaches, having the benefit of a system overview at the controller, but obtaining a stable configuration of bandwidth allocation for the system is nontrivial. We present, review, and compare different mechanisms to achieve this end, and a number of different means of obtaining the configurations themselves. We describe an analytical model of the system under consideration and present two mathematical approaches to derive solutions for any system configuration and deployment, along with an adaptive feedback-based solution. We also describe a comprehensive simulation-based model for the problem, and a prototype that allows comparison of these approaches. Our investigations demonstrate that a self-adaptive dynamic approach far outperforms any static scheme, and that using a mathematical model to produce the configurations themselves confers several advantages.http://dx.doi.org/10.1155/2007/23917
spellingShingle R. J. Haines
N. Fanning
T. Lewis
J. Coon
Bandwidth Optimization in Centralized WLANs for Different Traffic Types
EURASIP Journal on Wireless Communications and Networking
title Bandwidth Optimization in Centralized WLANs for Different Traffic Types
title_full Bandwidth Optimization in Centralized WLANs for Different Traffic Types
title_fullStr Bandwidth Optimization in Centralized WLANs for Different Traffic Types
title_full_unstemmed Bandwidth Optimization in Centralized WLANs for Different Traffic Types
title_short Bandwidth Optimization in Centralized WLANs for Different Traffic Types
title_sort bandwidth optimization in centralized wlans for different traffic types
url http://dx.doi.org/10.1155/2007/23917
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AT tlewis bandwidthoptimizationincentralizedwlansfordifferenttraffictypes
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