Abstract
We investigate $k$ -connectivity in secure wireless sensor networks under the random pairwise key predistribution scheme with unreliable links. When wireless communication links are modeled as independent on-off channels, this amounts to analyzing a random graph model formed by intersecting a random $K$ -out graph and an Erdős-Renyi graph. We present conditions on how to scale the parameters of this intersection model so that the resulting graph is $k$ -connected with probability approaching to one (resp. zero) as the number of nodes gets large. The resulting zero-one law is shown to improve and sharpen the previous result on the 1-connectivity of the same model. We also provide numerical results to support our analysis.
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