A Tuning Mechanism for 802.11e Access Parameters for Coping with Delay Asymmetry

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. This paper introduces a new control mechanism which dynamically tunes the parameters of the 802.11e contention-based access method. The proposed mechanism aims at providing QoS as well as ameliorating the problem of delay asymmetry.