Date Added: Apr 2010
In Mobile Ad hoc NETworks (MANETs), timing information is easily available due to the use of a shared medium, even when the traffic is encrypted. This paper addresses how such timing information can be used for detecting packet forwarding activities in MANETs. The authors' results depend in part on the previous results on unidirectional flow detection. They first provide further analysis for the unidirectional flow detector proposed in, under the independent Poisson chaff assumption. Regardless of the fraction of chaff, it is shown that flows can be detected consistently, and the false alarm probability decays exponentially fast as the sample size grows.