传感器网络的安全位置验证  

Position Verification in Sensor Networks

作　　者：俞波[1] 王治[1] 杨珉[1] 高传善[1] 

机构地区：[1]复旦大学计算机科学与工程系,上海200043

出　　处：《小型微型计算机系统》2007年第12期2118-2124,共7页Journal of Chinese Computer Systems

摘　　要：安全位置验证是传感器网络中一个重要的安全问题.传统的位置验证方案依赖于高精度的测距设备,不适合于成本受限的通用传感器网络.本文提出通过对信号强度分布情况的分析来估计节点的物理位置,并进行位置验证.一方面,本文方案使用强回归技术减少恶意节点互相包庇对位置估计的影响;另一方面,本文使用了统计分析的方法增强位置验证的准确度.最后,通过模拟实验对本文的位置验证方案进行了评估.Fabricated position claims have been regarded as a serious security threat to ad hoc networks and sensor networks, In this paper, we present a lightweight security scheme for verifying nodes＇ position claims in sensor networks, based on statistic analysis of signal strength distribution. First, we propose a technique to prevent malicious nodes from covering up for each other. We, then, propose a statistic algorithm to enhance the accuracy of position verification. The algorithms can detect potential position fabrications by observing the signal strength distribution of a suspect node over a period of time. Finally, we conduct simulations to explore the feasibility of our scheme.

关 键 词：无线自组网 传感器网络 入侵检测 安全位置验证 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]