无线传感器网络节点定位算法健壮性研究

定位是无线传感器网络最为重要的一项基础工作,目前的定位算法无一例外需要依靠参考节点的位置信息对非参考节点进行定位,然而当参考节点的位置信息受到攻击或误差影响之后,定位算法的精确度会受到极大的影响。文章列举了若干攻击方法,并提出了一种基于VNRP(Von Neumann Rejection Principle)的三边测量定位算法TVNRP(Trilateration Based onVNRP)。建造了一个可能遭受攻击的模拟环境,并将改进后的定位算法和原算法在该环境进行性能比较,实验结果表明改进后的算法具有良好的健壮性。

Robust Localization Algorithm Research of Wireless Sensor Network

Location is a vital foundation work in Wireless Sensor Network(WSN).All location algorithms at present need the position information of beacon nodes to locate the non-beacon nodes.When the position information is affected by the attacker or errors,the accuracy of these algorithms will degrade badly.We list some attack ways and propose the trilateration algorithm TVNRP based on Von Neumann Rejection Principle(VNRP).We construct a simulation circumstance which might be attacked and compare the TVNRP with original algorithm.The experiment results demonstrate better robustness than original algorithm.