Institute of Electrical & Electronic Engineers
The authors investigate the secure connectivity of wireless sensor networks under the random pairwise key pre-distribution scheme of researchers. Unlike recent work carried out under the assumption of full visibility, here they assume a (simplified) communication model where unreliable wireless links are represented as independent on/off channels. They present conditions on how to scale the model parameters so that the network has no secure node that is isolated and is securely connected, both with high probability, when the number of sensor nodes becomes large. The results are given in the form of zero-one laws, and exhibit significant differences with corresponding results in the full-visibility case.