Date Added: Jul 2009
Security in Mobile Ad hoc NETworks (MANET) presents new challenges due to the lack of centralized control policy. Prior research in securing ad hoc networks has generally focused on securing ad hoc routing and medium access control separately. The consideration of handling node misbehavior via cross-layer cooperation, however, has not been fully addressed. In this paper, the authors propose a detailed system framework illustrating the secure cross-layer design in MANET. They focus on the cross-layer interaction between routing layer and MAC layer. These two layers work together to facilitate detection and reaction of node MAC misbehavior in the ad hoc networks. Existing methods are efficient to detect MAC misbehaviors, but it is more critical to react to these misbehaviors after correct diagnosis.