Mechanisms of reducing reauthetication delay on IEEE 802.11

In this paper, we present of mechanisms for reducing reau-thentication delay in Institute of Electrical and Electron-ics Engineers (IEEE) 802.11 Wireless Local Area Networks (WLAN). We survey some common reauthentication meth-ods e.g. 802.11r and ERP and we compare the methods’ efficiency. The focus is in managed networks, where client authenticate by the default to a remote Authentication, Au-thorization, Accounting server (AAA-server). In reauthentication the client and AAA-server change in-formation and after that the AAA-server recognise the client and AP which it is in registered. After the registration the client’s Internet Protocol (IP) address might be change and the users open sessions is closed and the sessions have to build up again. If we can change reauthentication such as we don’t need to rebuild sessions, then we get efficiency WLAN