AOA based trust evaluation scheme for Sybil attack detection in WSN
Yan Zhang, Fan Ke-feng, Zhang Su-bing, Wei Mo · Jisuanji yingyong yanjiu · 2010
As wireless sensor networks (WSN) are widely applied in smart home networks and other new emerging areas, its security issues become increasingly prominent. Aiming at the typical Sybil attack in WSN,this paper proposed a new trust evaluation based on AOA (angle of arrival) detection scheme TEBA (trust evaluation based on AOA). According to the feature that Sybil node could create multi-identities but only with one physical position,beacon node identified Sybil identities whose signal phase difference below trust threshold by means of evaluating trust degree for adjacent sensor nodes . TEBA introduced multi-node collaborative ideas and discarded complex centroid calculation, realizing a low-latency, efficient detection. The simulation results show that TEBA can not only detect and defense Sybil attack but also protect system performance effectively.