by Morris Chang Associate Professor, Department of Electrical and Computer Engineering Iowa State University
The 802.11e standard is designed to be backward compatible with the 802.11. However, the newer devices' performance may be degraded because of the existence of legacy DCF users, and therefore would get a lower priority service. In this talk, we review the 802.11e standards and discuss different aspects of the legacy DCF and EDCA users coexistence and propose a simple distributed management scheme to mitigate the issues. Simulation results based on Opnet is also presented.