DV-hop is a typical location algorithm in wireless sensor networks. This paper analyzes DV-hop algorithm parameters, including node communication radius, the number of anchor nodes, and the total number of nodes, of which parameters impact on the positioning error,and the simulation results are given. Through the simulation results,the optimum value of the parameter in DV-hop algorithm have been obtained. Theoretical analyses and simulation results demonstrate that parameters of the optimized algorithm effectively improve the node location error.%DV-hop算法是无线传感器网络中一种典型的定位算法.系统分析了DV-hop算法中对定位误差有较大影响的节点通信半径、锚节点个数、总节点个数等几个重要参数,并进一步给出仿真结果.通过仿真结果分析得出上述参数的较优值,降低使用DV-hop算法时无线传感器网络的定位误差.理论分析和仿真结果表明,参数优化后的算法有效的降低了节点的定位误差.
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