针对无线传感器网络中节点定位精度不高的问题,基于萤火虫群算法提出了一种新的定位方法(Node Lo-calization based on Glowworm Swarm,NLGS).该方法首先结合锚点信息,给出了三维空间下未知节点位置的计算方法和误差优化模型,并利用萤火虫群算法对目标函数进行求解,以达到快速收敛的目的.通过利用OPNET进行仿真实验,研究了影响该方法的关键因素.实验结果表明,相比于其他算法,NLGS具有较好的适应性.
Abstract
In order to mitigate the lower accuracy of node localization in wireless sensor network
a new algorithm NLGS (Node Localization based on Glowworm Swarm) is proposed by glowworm swarm algorithm.In this algorithm
the calculation method of unknown node localization in three-dimensional space and the error optimization model is presented with anchor at first
and the objective function is solved by glowworm swarm algorithm
which is to achieve the fast convergence
a simulation with OPNET was conducted to study the key influence factors of NLGS.The result shows that