Article

Adapting WLAN MAC parameters to enhance VoIP call capacity

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MSWiM '05: Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems

Pages 250 - 254

https://doi.org/10.1145/1089444.1089488

Published: 10 October 2005 Publication History

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Abstract

This work describes a detailed simulation-based study of the performance of an IEEE 802.11e Medium Access Control (MAC) layer over an IEEE 802.11g Physical (PHY) layer. The study focuses on the number of simultaneous bidirectional G.711 Voice over IP (VoIP) calls that can be supported by a Wireless Local Area Network (WLAN) using the Extended Rate PHY - Orthogonal Frequency Division Modulation (ERP-OFDM) mode of 802.11g.A new scheme for adapting the WLAN MAC parameters is proposed in this work. The new scheme dynamically adapts the Contention Window (CW) based on the retransmission rate of the system. In addition, an adaptive Transmission Opportunity (TXOP) mechanism aids in balancing the uplink and downlink traffic levels and so provides the equality in uplink and downlink performance that is required for bidirectional VoIP traffic. The proposed scheme can thus maintain acceptable levels of QoS for higher call capacities, increasing the overall VoIP capacity of the system.

References

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Cited By

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Salvador PMancuso VSerrano PGringoli FBanchs A(2014)VoIPiggy: Analysis and Implementation of a Mechanism to Boost Capacity in IEEE 802.11 WLANs Carrying VoIP TrafficIEEE Transactions on Mobile Computing10.1109/TMC.2013.11413:7(1640-1652)Online publication date: Jul-2014
https://doi.org/10.1109/TMC.2013.114
Salvador PGringoli FMancuso VSerrano PMannocci ABanchs A(2012)VoIPiggy: Implementation and evaluation of a mechanism to boost voice capacity in 802.11WLANs2012 Proceedings IEEE INFOCOM10.1109/INFCOM.2012.6195732(2931-2935)Online publication date: Mar-2012
https://doi.org/10.1109/INFCOM.2012.6195732
Cano CBellalta BSfairopoulou ABarceló J(2010)Tuning the EDCA parameters in WLANs with heterogeneous trafficComputer Networks: The International Journal of Computer and Telecommunications Networking10.1016/j.comnet.2010.02.01154:13(2199-2214)Online publication date: 1-Sep-2010
https://dl.acm.org/doi/10.1016/j.comnet.2010.02.011
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Index Terms

Adapting WLAN MAC parameters to enhance VoIP call capacity
1. Networks
  1. Network types
    1. Mobile networks
    2. Wireless access networks

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Published In

MSWiM '05: Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems

October 2005

372 pages

ISBN:1595931880

DOI:10.1145/1089444

General Chairs:
Azzedine Boukerche
University of Ottawa, Canada
,
Victor Leung
University of British Columbia, Canada
,
Program Chairs:
Carla-Fabiana Chiasserini
Politecnico di Torino, Italy
,
Vikram Srinivasan
National University of Singapore, Singapore

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 10 October 2005

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MSWiM05

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MSWiM05: 8th International Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems 2005

October 10 - 13, 2005

Quebec, Montréal, Canada

Acceptance Rates

MSWiM '05 Paper Acceptance Rate 48 of 165 submissions, 29%;

Overall Acceptance Rate 398 of 1,577 submissions, 25%

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Citations

Cited By

View all

Salvador PMancuso VSerrano PGringoli FBanchs A(2014)VoIPiggy: Analysis and Implementation of a Mechanism to Boost Capacity in IEEE 802.11 WLANs Carrying VoIP TrafficIEEE Transactions on Mobile Computing10.1109/TMC.2013.11413:7(1640-1652)Online publication date: Jul-2014
https://doi.org/10.1109/TMC.2013.114
Salvador PGringoli FMancuso VSerrano PMannocci ABanchs A(2012)VoIPiggy: Implementation and evaluation of a mechanism to boost voice capacity in 802.11WLANs2012 Proceedings IEEE INFOCOM10.1109/INFCOM.2012.6195732(2931-2935)Online publication date: Mar-2012
https://doi.org/10.1109/INFCOM.2012.6195732
Cano CBellalta BSfairopoulou ABarceló J(2010)Tuning the EDCA parameters in WLANs with heterogeneous trafficComputer Networks: The International Journal of Computer and Telecommunications Networking10.1016/j.comnet.2010.02.01154:13(2199-2214)Online publication date: 1-Sep-2010
https://dl.acm.org/doi/10.1016/j.comnet.2010.02.011
Sfairopoulou ACano CBellalta BBarcel√≥ JOliver M(2009)Policy-Based QoS Pro ision in WLAN HotspotsWireless Quality of Service10.1201/9781420051315.ch2(27-55)Online publication date: 14-Dec-2009
https://doi.org/10.1201/9781420051315.ch2
Xiao YLin CJiang YChu XWang S(2009)Risk-Aware QoP/QoS Optimization for Multimedia Applications in Wireless NetworksQuality of Service in Heterogeneous Networks10.1007/978-3-642-10625-5_3(34-51)Online publication date: 2009
https://doi.org/10.1007/978-3-642-10625-5_3
Tsao SHuang C(2009)An energy‐efficient transmission mechanism for VoIP over IEEE 802.11 WLANWireless Communications and Mobile Computing10.1002/wcm.7479:12(1629-1644)Online publication date: 23-Feb-2009
https://doi.org/10.1002/wcm.747
Chi JSong MWang YZhao MZhang J(2008)Capacity Improvement of WDB Algorithm for Voice Service over WLAN2008 Third International Conference on Pervasive Computing and Applications10.1109/ICPCA.2008.4783673(547-552)Online publication date: Oct-2008
https://doi.org/10.1109/ICPCA.2008.4783673
Agarwal AWang WGupta RChow M(2007)LAP: Link-Aware Protection for Improving Performance of Loss and Delay Sensitive Applications in Wireless LANsMILCOM 2007 - IEEE Military Communications Conference10.1109/MILCOM.2007.4454948(1-7)Online publication date: Oct-2007
https://doi.org/10.1109/MILCOM.2007.4454948

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