Court Trial Based Detection of Forwarding Misbehaviors in Wireless Networks

This paper considers the problem of identifying the source of forwarding misbehavior in ad hoc networks. Unlike existing proposals, an approach is consider that works locally, within k-hops of the node under investigation, and requires neither end-end ACKs nor observer nodes to hear transmissions into, and out of, the node under investigation. The approach relies on nodes that observe a certain node's forwarding behavior (by virtue of being a next-hop neighbor on a path or an overhearing node in the vicinity of the forwarding node) and report the observed behavior to the node upstream from the node under investigation.