A three-tier scheme for sybil attack detection in heterogeneous IWSN

摘要

Industrial wireless sensor network is a new application of wireless sensor network in the field of industry in recent years. However, IWSN may be subject to different attacks and security risks, among which the Sybil attack is the most harmful type of base attack. According to the characteristics of wireless sensor networks in industrial environment, a new three-tier detection scheme is proposed. In the first-level, all common nodes and Sybil nodes were detected by RSSI-based quadratic difference method. In the second layer, the residual energy-based method is used to continue the detection of the nodes that have been detected in the first-level. The detection of first and second-level high-energy nodes is finally completed by the base station. The simulation results show that our proposed scheme significantly improves network lifetime and effectively improve the detection rate of Sybil nodes.