基于DV-HOP WSN改进算法的研究与仿真  

WSN Improvement Localization Algorithm Research and Simulation Based on DV-HOP

作　　者：竺如生[1] 

机构地区：[1]黑龙江大学信息与技术学院,黑龙江哈尔滨150080

出　　处：《自动化技术与应用》2012年第6期18-20,28,共4页Techniques of Automation and Applications

基　　金：黑龙江省教育厅2010年度科学技术研究(面上)项目计划(编号11551347)

摘　　要：节点定位是无线传感器网络应用的关键技术,通过对无线传感器网络中DV-Hop节点定位算法及影响算法定位性能因素的分析与研究,提出的一种新的改进方法,即采用基于角度阈值的锚节点选择策略,有选择性的选取锚节点参与三边定位过程,对平均每跳距离的计算进行改进,并通过引入角度加权因子对其定位结果进行修正。仿真结果表明,改进后的算法有效提高了节点的覆盖率和定位精度。The node localization is the wireless sensor network application key technologies, through the wireless sensor network in the DV-Hop node localization algorithm and the influence algorithm localization performance factor＇s research, a new corrective method is proposed. It is based on the angle threshold value anchor node choice strategy, has the selective selection anchor node participation trilateral localization process, makes the improvement every time equally to the jumping distance＇s computation, and carries on the revision through the introduction angle weighting factor to its localization result. The simulation result indicats that after the improvement algorithm the node coverage fraction and the pointing accuracy are raised effectively.

关 键 词：DV-HOP 定位算法 角度阈值 加权因子 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]