This paper proposes a distributed hierarchical intrusion detection system for ad hoc wireless networks, based on a power level metric for potential ad hoc hosts, which is used to determine the duration for which a particular node can support a network monitoring node. The paper proposes an iterative power-aware power-optimal solution to identifying nodes for distributed agent-based intrusion detection. The advantages that the approach entails are several, not least of which is the inherent flexibility SPAID provides. The paper considers minimally mobile networks in this paper, and considerations apt for mobile ad hoc networks and issues related to dynamism are earmarked for future research.
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