Skip to main navigation Skip to search Skip to main content

Experimental tuning of AIFSN and CWmin parameters to prioritize voice over data transmission in 802.11e WLAN networks

  • Miroslaw Narbutt
  • , Mark Davis

    Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

    Abstract

    In this paper we experimentally study the impact of two EDCA parameters, namely AIFSN and CWmin, on a mixed voice/data wireless transmission. In particular we investigate how the tuning of these parameters affects both the voice transmission quality and background data throughput. We predict end-to-end voice transmission quality from time varying transmission impairments using the latest Appendix to the ITU-T E-model. Our experimental results show that the tuning of the EDCA parameters can be used to successfully prioritize voice transmission over data in real 802.11e networks. We also demonstrate that the AIFSN parameter more effectively protects voice calls against background data traffic than CWmin. To the best of our knowledge, this is the first experimental investigation on tuning of MAC layer parameters in a real 802.11e WLAN network from the perspective of end-to-end voice transmission quality and end user satisfaction.

    Original languageEnglish
    Title of host publicationIWCMC 2007
    Subtitle of host publicationProceedings of the 2007 International Wireless Communications and Mobile Computing Conference
    Pages140-145
    Number of pages6
    DOIs
    Publication statusPublished - 2007
    EventIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference - Honolulu, HI, United States
    Duration: 12 Aug 2007 → 16 Aug 2007

    Publication series

    NameIWCMC 2007: Proceedings of the 2007 International Wireless Communications and Mobile Computing Conference

    Conference

    ConferenceIWCMC 2007: 2007 International Wireless Communications and Mobile Computing Conference
    Country/TerritoryUnited States
    CityHonolulu, HI
    Period12/08/07 → 16/08/07

    Keywords

    • Differentiated prioritization scheme
    • IEEE 802.11e EDCA
    • QoS
    • VoIP over wireless LAN (VoWLAN)

    Fingerprint

    Dive into the research topics of 'Experimental tuning of AIFSN and CWmin parameters to prioritize voice over data transmission in 802.11e WLAN networks'. Together they form a unique fingerprint.

    Cite this