A POLICY-BASED ARCHITECTURE FOR PROTECTING 802.11 WLANS AGAINST DDOS ATTACKS Topics: Network Security and Protocols (Ipsec); Speech Recognition; Viruses and Worms; Wireless LAN and Home Area Networks In Proceedings of the First International Conference on E-Business and Telecommunication Networks - Volume 2: ICETE, 107-112, 2004 , Setúbal, Portugal