基于加权最小二乘法的改进DV-HOP定位算法研究

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI:10.1109/KAMW.2008.4810605

Xie Chuan

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引用次数: 14

摘要

传感器节点的定位是整个无线传感器网络的基础。介绍了DV-HOP算法中传感器节点的定位过程。在此基础上，提出了一种改进的基于加权最小二乘法的DV-HOP算法。该算法引入了一种与跳数相关的加权方法来区分锚节点的影响，提出了一种确定锚节点位置的新方法。仿真结果表明，所提出的改进方法可以大大提高节点的定位精度。

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Research on Improved DV-HOP Localization Algorithm Based on Weighted Least Square Method

Localization of sensor nodes is the foundation of the entire wireless sensor network. The article introduces the localization process of sensor nodes of DV-HOP algorithm. Based on this, it proposes an improved DV-HOP algorithm which based on weighted least square method. The new algorithm introduced a weighted method related with hops to differentiate the anchor node influence, and proposed a new method of determining location of the node. The simulation results show that the proposed improvements can greatly enhance the localization accuracy of the nodes.

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2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop

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