基于移动代理的三维DV-Hop算法

Three-dimensional DV-Hop algorithm based on mobile Agent

三维空间的无线传感器网络节点定位算法研究是当前的研究热点之一。通过对现有三维定位算法的不足进行分析,将无需测距的DV-Hop算法拓展到三维空间,并在通信量、定位精度方面进行了相关改进,提出了一种基于移动代理的三维DV-Hop定位算法。仿真结果表明,所提算法能对三维环境中的传感器节点进行有效的定位,信标节点的密度和通信半径对定位误差和覆盖率的影响较小,且定位精度和覆盖率相对于其他算法有明显提高。

The node localization algorithm of Wireless Sensor Network（WSN） in three-dimensional space is one of the hot research topics currently.A three-dimensional DV-Hop localization algorithm based on mobile Agent was proposed by analyzing the lack of the existing three-dimensional localization algorithms,extending the rang-free algorithm of DV-Hop to three-dimensional space,and improving the performance in traffic and positioning accuracy.The simulation results show that the proposed algorithm can position the sensor nodes in the three-dimensional environment effectively,the beacon nodes＇ density and communication radius have little effect on the positioning error and the coverage,and the positioning accuracy and coverage relative to other algorithms have improved significantly.