@techreport{TR-IC-05-33,
  number = {IC-05-33},
  author = {Juliana Freitag and
            Nelson L. S. da Fonseca and
            José F. de Rezende},
  title = {Admission Control and Tuning of Medium Access
           Parameters in 802.11e Networks},
  month = {December},
  year = {2005}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 26 pages.
    \par\selectlanguage{english}\textbf{Abstract}
       The IEEE 802.11e standard is intended to support applications
       with QoS requirements.  However, such provisioning cannot be
       achieved when the network load is high.  In this paper, the
       effectiveness of two mechanisms for measurement-based admission
       control in 802.11e networks is evaluated.  In addition, a new
       control mechanism which dynamically tunes parameters of the
       802.11e contention-based access method is introduced.  The
       proposed mechanism aims at providing QoS as well as
       ameliorating the problem of delay asymmetry.
  }
}