A Detection and Recovery Architecture Against DoS and Worm Attacks in NGMN

This paper addresses potential security threats that arise from the interconnection of different access technologies in next generation mobile networks (NGMN). A generic hierarchical security architecture is proposed that is capable of detecting and isolating the dominant security threats namely denial- of-service (DoS), distributed DoS (DDoS) and worm attacks. The architecture utilizes an anomaly-based security detection mechanism, which resolves the attacks through a cooperative approach between the node under attack and its corresponding higher tier nodes. The results from the ns-2 based simulation indicate that the proposed security architecture is capable of mitigating these threats in an effective manner.