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IP auto-configuration in mobile ad hoc networks has attracted much attention. Efficient DAD (Duplicate Address Detection) schemes should be devised to provide each node with its unique address in the network. Generally, DAD schemes can be categorized into two classes: active DAD and passive DAD. In this paper, the authors focus on passive DAD schemes over on-demand ad hoc routing protocols. Specifically, they have three goals: improving the accuracy of detecting address conflicts, improving the successful detection success ratio, and reducing the time taken to detect these conflicts. Unlike current approaches, they propose several schemes that exploit additional information such as sequence number, location, and neighbor knowledge.
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