Design of a Joint Defense System for Mobile Ad Hoc Networks

A mobile ad hoc network (MANET) is vulnerable to malicious attacks although it is suitable for various environments because of its rapid establishment. In order to set up a secured MANET, we should not only adopt encryption and authentication, but also equip each node with an intrusion detection system to detect malicious attackers. Focusing on intrusion detection, we propose an intrusion detection system that integrates a finite state machine (FSM) and a support vector machine (SVM) to analyze traffic patterns of MANETs. Shown by numerical examples, such an intrusion detection system is able to amend drawbacks of single-technique systems and enhance usage/right of normal users as well as security of MANETs