摘要
当节点不均匀分布时,DV-Hop的定位精度较差。针对DV-Hop定位算法的缺陷,提出一种基于移动锚节点的改进DV-Hop定位算法。在网络中引入具有一定移动能力的锚节点,并构建锚节点之间的虚拟力模型,锚节点受到虚拟力作用发生移动,从而均匀的分布于整个网络,修正了DV-Hop对不均与分布网络适应性差的特点。仿真实验表明,与原始算法相比改进后的算法定位精度有较大提高。
In the situation of that nodes are distributed unevenly on monitored area,the DV-Hop location algorithm get low location accuracy. To overcome this disadvantage of DV-Hop location algorithm, a modified DV-I-Iop location algorithm based on mobile anchor node which named MAN-DV Hop is proposed. This MAN-DV Hop introduced mobile anchor nodes into network, and create a math model of virtual force between two anchor nodes. The virtual force make anchor node move to new location as a result that anchor nodes are evenly distributed on monitored area, and MAN-DV Hop do away with shortcoming of DV-Hop at the situation that nodes are distributed unevenly. Simulation experiments prove that, in aspects of location accuracy, MAN-DV Hop has great advantage over traditional algorithms.
出处
《电子设计工程》
2011年第24期98-101,共4页
Electronic Design Engineering
