Date Added: Nov 2009
The growing popularity of 802.11-based Wireless LANs (WLAN) also increases the risk of security attacks. Most studies of WLAN security are on the protection of data integrity, and few studies are addressing the issue of Denial of Service (DoS) attacks. This paper studies two major DoS attacks of Authentication Request Flooding (AuthRF) and Association Request Flooding (AssRF). The studies show that these DoS attack cause significant performance degradations and may disconnect the communications. A queuing model is presented to study the attacking mechanisms, and the causes of performance degradations.