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    Investigating the validity of IEEE 802.11 MAC modeling hypotheses


    Huang, K.D. and Duffy, Ken R. and Malone, David and Leith, Douglas J. (2008) Investigating the validity of IEEE 802.11 MAC modeling hypotheses. In: IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008, 15th - 18th September 2008, Cannes.

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    Abstract

    As WLANs employing IEEE 802.11 have become pervasive, many analytic models for predicting their performance have been developed in recent years. Due to the complicated nature of the 802.11 MAC operation, approximations must be made to enable tractable mathematical models. In this article, through simulation we investigate the veracity of the approximations shared by many models that have been developed starting with the fundamental hypotheses in Bianchipsilas (1998 and 2000) seminal papers. We find that even for small numbers of station these assumptions that hold true for saturated stations (those that always have a packet to send) and for unsaturated stations with small buffers. However, despite their widespread adoption, we find that the commonly adopted assumptions that are used to incorporate station buffers are not appropriate. This raises questions about the predictive power of models based on these hypotheses.

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: Copyright Notice "©2008 IEEE. Reprinted from IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4699914&isnumber=4699392
    Keywords: Access protocols; Wireless LAN; IEEE 802.11 MAC modeling hypotheses; WLAN; Mathematical model; Station buffer; PIMRC.
    Academic Unit: Faculty of Science and Engineering > Computer Science
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 1457
    Depositing User: Dr. David Malone
    Date Deposited: 23 Jun 2009 16:30
    Refereed: Yes
    URI:

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