中文摘要：

Sybil攻击破坏无线传感器网络中的冗余机制、数据融合等机制。目前已有的防范和检测Sybil攻击的方法具有一定的局限性。针对上述不足,提出了一种基于地理位置信息的Sybil攻击检测方法,该方法从事件观测区域到基站建立多条路径,事件区域根据多条路径中节点的位置信息检测网络中的Sybil攻击。仿真实验表明,此方法能够节省存储空间,降低能量消耗,信道出错率在10%以内时,对Sybil攻击的检测率达到95%以上。

英文摘要：

Sybil attack defeats many functions of wireless sensor networks such as redundancy mechanisms, data aggregation etc. Existing methods of Sybil attacks defense and detection have limitation. A geographical location-based scheme to detect Sybil attacks was proposed. The method constructed multi-path from event region to base station based on identities of nodes, and compared the location information of nodes in the paths to detect Sybil attacks. The simulation results show that the proposed scheme consumes less storage and lower energy, and the detection accuracy is over 95% when the channel error rate is controlled in 10%.