| 一种无线传感器网络定位算法的改进 |
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| 引用本文： | 梁 青,韩昊澎,李卓冉,熊 伟.一种无线传感器网络定位算法的改进[J].西安邮电学院学报,2014(3):11-14. |
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| 作者姓名： | 梁 青 韩昊澎 李卓冉 熊 伟 |
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| 作者单位： | [1]西安邮电大学电子工程学院,陕西西安710121 [2]空军工程大学信息与导航学院,陕西西安710077 |
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| 基金项目： | 国家自然科学基金资助项目（61202490）;陕西省教育厅科学研究计划基金资助项目（11JK1013） |
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| 摘 要： | 为了减小距离向量-跳段(DV-hop)算法中计算平均跳距时所造成的误差对定位的影响,提出一种基于测距信息的改进DV-hop算法。改进算法充分考虑DV-hop算法中信标节点计算平均跳距误差较大这一因素,将接收的信号强度指示(RSSI)算法中测得信号强度值转化为距离信息,再将距离信息引入DV-hop算法平均跳距的计算中,并在不同信号传播模型下进行仿真分析。仿真结果表明,在同一信号传播模型下,改进算法比原DV-hop算法有着更小的定位误差。
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| 关 键 词： | 无线传感器网络 距离向量-跳段(DV-hop) 接收信号强度 传播模型 |
Improvement of a hybrid localization algorithm in wireless sensor network |
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| LIANG Qing,HAN Haopeng,LI Zhuoran,XIONG Wei.Improvement of a hybrid localization algorithm in wireless sensor network[J].Journal of Xi'an Institute of Posts and Telecommunications,2014(3):11-14. |
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| Authors: | LIANG Qing HAN Haopeng LI Zhuoran XIONG Wei |
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| Affiliation: | 1. School of Electronic Engineering, Xi＇an University of Posts and Telecommunications, Xi＇an 710121, China; 2. Institute of Information and Navigation, Air Force Engineering University, Xi＇an 710077, China) |
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| Abstract: | In order to reduce the effect on positioning from the average hop distance error calculated by the DV-hop algorithm,a kind of improved DV-hop algorithm based on RSSI ranging is proposed.Considering the effect of beacon nodes while calculating the average hop distance in DV-hop,the improved algorithm can transform the measured signal intensity values into the distance information from RSSI algorithm ranging.Simulations are carried out in different transmission models and results show that the improved algorithm has smaller location error than the original algorithm in the same transmission model. |
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| Keywords: | wireless sensor network DV-hop algorithm received signal strength indictor transmission model |
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