摘要
为解决无线传感器网络中节点定位缺乏安全性和定位精度不高的问题,基于最速下降法与牛顿迭代法提出了一种新的三维安全定位算法。该算法首先给出三维空间下未知节点定位的计算方法和独立攻击模型,然后利用最速下降法和恶意锚节点检测技术选出最优锚节点数据,并结合牛顿迭代法实现了快速高精度的三维安全定位。实验结果表明,在危险的环境下,该算法能有效抵抗独立攻击以及在定位精度和未知节点可成功定位率方面都具有较好的优势。
To solve the problems about lower accuracy and lack of security of node location for wireless sensor net-work deployed in stereoscopic environments,a new three-dimensional secure localization algorithm is proposed bysteepest descent method and Newton＇s method. In this algorithm,firstly,the calculation method of unknown node lo-calization in three-dimensional space and the model of non-coordinated attack are presented. Secondly,it choosesthe optimal anchor node data by using the steepest descent method and the detection technology of malicious anchornode. Then,combining with the Newton＇s method,the algorithm achieves the fast and high-precision secure local-ization of three-dimensional space. The experimental results show that the algorithm can resist the non-coordinatedattack in a dangerous environment effectively and do good advantages on the localization accuracy and localizedrate of unknown node.
出处
《传感技术学报》
CAS
CSCD
北大核心
2015年第11期1702-1707,共6页
Chinese Journal of Sensors and Actuators
基金
贵州省基础研究重大项目(黔科合JZ字[2014]2001)
贵州大学引进人才科研项目(贵大人基合字[2014]29号)
贵州大学研究生创新基金项目(研理工2015085)
关键词
无线传感器网络
三维安全定位
最速下降法
牛顿迭代法
独立攻击
wireless sensor network
3D secure localization
steepest descent method
Newton＇s method
noncoordinated attack
