Date Added: Dec 2011
Mobile Ad-hoc NETworks (MANETs) are well known to be vulnerable to various attacks, due to features such as lack of centralized control, dynamic topology, limited physical security and energy constrained operations. In this paper, the authors focus on preventing Denial-of-Service (DoS) attacks. As an example, they consider intruders that can cause DoS by exploiting the route discovery procedure of reactive routing protocols. They show the unsuitability of tools such as control chart, used in Statistical Process Control (SPC), to detect DoS and propose an anomaly-based intrusion detection system that uses a combination of chi-square test & control chart to first detect intrusion and then identify an intruder.