一种容忍恶意锚节点独立攻击的安全定位算法

A Secure Localization Algorithm Against Non-Coordinated Attack of Malicious Node

无线传感器网络中节点定位的准确性是网络能否得到合理应用的关键。在恶意危险的环境中,一些定位节点可能会受到攻击者的影响,以至于不能精确定位。文章提出了一种高效的无线传感器网络安全定位算法,该算法结合梯度下降法和异常检测技术,通过过滤掉恶意的数据,实现了高精度的定位。仿真结果表明,在受到独立攻击时,该算法能达到预期的效果,利用较少的计算资源达到了比现有算法更优的性能。

The accurate position of nodes is the key to reasonable application of the wireless sensor networks. Some nodes may be influenced by attackers under malicious and dangerous environment so that they can not locate their position accurately. The article presents an efficient and effective algorithm for secure localization. Combining the gradient descent method and outher detection technology,the algorithm filters out malicious measurement data then it can achieve high-precision localization. Results show that the algorithm can achieve the desired effect under non- coordinated attack, and perform better than existing algorithms with less computing resources.