]> 2005-10-19T10:30:00-05:00 2005-10-19T12:00:00-05:00 We present a scheme that helps in accurate diagnosis of malicious attacks in ad hoc networks. Our scheme employs cross-layer interactions based on observations at various networking layers to decrease the number of false positives. Our simulations show that our scheme is more effective and accurate than those based on isolated observations from any single layer.]]>