Data fusion based on RBF and nonparametric estimation for localization in wireless sensor networks

Yangming Li, Max Q.H. Meng, Wanming Chen, Zhuhong You, Shuai Li, Huawei Liang

科研成果: 书/报告/会议事项章节会议稿件同行评审

6 引用 (Scopus)

摘要

Localization is one of important functions in Wireless Sensor Networks (WSNs). And Data fusion is commonly regarded as an efficient method that can improve precision of localization. The paper proposed a novel method based on nonparametric estimation techniques and Radial Basis Function (RBF) Neural Networks to decrease the indeterminacy of Time Difference of Arrival (TDOA) and Received Signal Strength Indicator (RSSI) measurements. The different sources of errors for each measurement types cause that the Probability Density Functions (PDFs) of measurements are not completely dependent. So, theoretically, the fusion of the two kinds of measurements could be effective. Nonparametric estimation techniques are introduced to resolve the problem that measurements do not completely submit to a known PDF. And RBF networks can partly eliminate the influence of environments by regulation of weights. The paper theoretically demonstrated that the data fusion based on RBF networks could achieve location estimation with the Minimum Mean Square Error (MMSE). After that, simulation results of the classical linear combination method and the single RBF fusion were compared with the proposed method in the paper to demonstrate that the proposed method can improve precision of localization with a little of increment in complexion and is robust to the variance of environments.

源语言英语
主期刊名2007 IEEE International Conference on Robotics and Biomimetics, ROBIO
出版商IEEE Computer Society
1361-1365
页数5
ISBN(印刷版)9781424417582
DOI
出版状态已出版 - 2007
已对外发布
活动2007 IEEE International Conference on Robotics and Biomimetics, ROBIO - Yalong Bay, Sanya, 中国
期限: 15 12月 200718 12月 2007

出版系列

姓名2007 IEEE International Conference on Robotics and Biomimetics, ROBIO

会议

会议2007 IEEE International Conference on Robotics and Biomimetics, ROBIO
国家/地区中国
Yalong Bay, Sanya
时期15/12/0718/12/07

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