On differential cooperation of neighbor nodes in wireless sensor network

To detect compromised sensor nodes in wireless sensor network, one main way is to detect their sensing data with the cooperation of their neighbor nodes because of spatial correlation. In most time, these neighbor nodes are equally treated. However these neighbor nodes are different in the view of temporal correlation. To address this, we discuss the differential cooperation of neighbor nodes. In this paper, we proposed distance-differential cooperation and correlation-differential cooperation, and discuss their advantage and disadvantage with the cases study. Our discussion shows that differential cooperation is capable of improving the capability of detecting compromised sensor nodes.