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无线传感器网络中的一种分布式相对定位算法的分析与改进 被引量：2

Analysis and improvement for a distributed relative localization algorithm in wireless sensor networks
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摘要 针对SDGPSN(Scalable and D istributed GPS free Positioning for Sensor Networks)算法通信开销过大的问题,通过改进其局部坐标系和全局坐标系构建过程,提出了一种新的相对定位算法。仿真实验结果显示,改进后的算法较之原算法具有更小的通信开销,使之更适于节点移动频率较低的无线传感器网络的节点定位应用。 To reduce the large communication cost of SDGPSN（Sealable and Distributed GPS free Positioning for Sensor Networks）, the establishment of local coordinate system and global coordinate system in SDGPS was improved. The modified algorithm was described in this paper. Result of the simulation shows the modified algorithm is better than the original in terms of communication costs, and is more suitable for localization of sensor nodes in the WSN in which mobility of the sensor nodes is low.
作者 陈寒 李仁发 乐光学
机构地区 湖南大学计算机与通信学院
出处 《计算机应用》 CSCD 北大核心 2006年第2期310-313,共4页 journal of Computer Applications
关键词 无线传感器网络 节点定位 相对定位 分布式定位 wireless sensor networks node localization relative localization distributed localization
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献14

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计算机应用
2006年 第2期

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