Fuzzy logic based key disseminating in ubiquitous sensor networks

The dynamic en-route filtering scheme is designed to filter out forged sensing reports en-route in ubiquitous sensor networks. In this scheme, the keys of each node used to authenticate reports are forwarded to and shared with some of its neighbor nodes during the initial phase. This paper present a fuzzy logic based key dissemination method in which the number of neighbor nodes to share the keys is determined by a fuzzy rule based system with the consideration of the network conditions. The proposed method can provide more flexibility and sufficient detection power, while it does not consume much energy.