Energy-efficient Path Configuration Method for Def in Wsns

In wireless sensor networks (WSNs), sensor nodes have stringent energy and computation requirements. Since they are left unattended, an adversary can generate false report attacks through compromised nodes. This would result in an increased number of verifications to filter these reports, causing waste of scarce energy resources. In this paper, we propose energy-efficient path configuration method for dynamic enroute filtering (EDEF), which uses fuzzy logic to select the forwarding node(s). In order to cater to compromised nodes and to detect and filter the false reports, we create alternative paths. Our proposed method selects forwarding nodes based on the key content of neighbor nodes, the number of neighbor nodes, and the residual energy. Auth-keys are distributed randomly from the global key pool. Simulation results demonstrate the effectiveness of our proposed method with up to 8.2% energy efficiency as compared to the dynamic en-route filtering (DEF) scheme.