无线传感器网络在协同攻击环境中的安全定位研究

在恶意危险的环境中,一些锚节点可能会被攻击者所俘获,然后向网络中发送错误的信息,目的在于阻碍其他节点的准确定位。介绍了无线传感器网络中存在的攻击类型,建立了协同攻击的数学模型,并提出一种能够抵御协同攻击的安全定位算法。仿真结果表明：在受到30%恶意锚节点协同攻击时,即使在攻击强度较大的情况下,该算法依然能对节点进行准确的定位,且平均定位误差不超过2m。

Research on secure localization of wireless sensor networks in coordinated attack environment

In malicious environment,some anchor nodes may be occupied by attackers,and then sent incorrect informations over the network,intending to prevent precise positioning of the other nodes.Various of attack types existing in wireless sensor networks（ WSNs） is introduced,mathematical model of coordinated attack is established,and a secure localization algorithm to defend against coordinated attack is proposed.Simulation results show that the algorithm is still able to accurately locate the node even in the case of a larger attack strength in coordinated attack environment by 30 % malicious nodes,and the average localization error is not more than 2 m.