容忍恶意攻击的无线传感网络安全定位算法  

Malicious attack-resistant secure localization algorithm for wireless sensor network

作　　者：徐琨[1] 刘宏立[1] 詹杰[2] 马子骥[1] XU Kun LIU Hong-li ZHAN Jie MA Zi-ji(College of Electrical and Information Engineering, Hunan University, Changsha 410082, China College of Physics and Electronic Science, Htman University of Science and Technology, Xiangtan 411201, China)

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082 [2]湖南科技大学物电学院,湖南湘潭411201

出　　处：《通信学报》2016年第12期95-102,共8页Journal on Communications

基　　金：国家自然科学面上基金资助项目(No.61172089);中央国有资本经营预算支出基金资助项目(No.[2013]470);博士后面上基金资助项目(No.2014M562100);湖南省科技厅基金资助项目(No.2014WK3001)~~

摘　　要：针对无线传感网络中恶意攻击会篡改信标节点发射强度破坏节点准确定位的问题,提出了一种顽健的基于半定规划松弛的安全定位算法(RSRSL)。该算法将发射功率作为一个未知的变量,分别基于单目标传感网络和多目标传感网络,建立了相应的安全定位概率模型。通过将非线性非凸的定位问题转化为易于求解的半定规划问题,实现对网络中普通节点的安全定位,并分析了RSRSL算法的计算复杂度。通过仿真和实测实验对RSRSL算法进行验证,结果表明,在存在恶意攻击的环境中,RSRSL算法要明显优于已有的定位算法,具有较高的定位精度。In hostile environments, localization often suffers from malicious attacks that may distort transmit power and degrade positioning accuracy significantly for wireless sensor network. A robust semidefinite relaxation secure localization algorithm RSRSL was proposed to improve the location accuracy against malicious attacks. On the assumption of unknown transmit power, which is undoubtedly approximate to the fact of WSN, a novel secure location probability model was introduced for single-target and multi-target sensor networks, respectively. Taking the computational complexity of RSRSL into account, the nonlinear and non-convex optimization problem was simplified into a semidefinite programming problem. According to the results from both simulations and field experiments, it is clearly demonstrated that the proposed RSRSL has better performance on location accuracy, in contrast to the conventional localization algorithms.

关 键 词：无线传感网络 安全定位 接收信号强度 发射功率 半定规划 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]