Energy-efficient robust acoustic source localization with local outlier rejection in Wireless Sensor Networks

Yong Liu, Yu Hen Hu, Quan Pan

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Outliers can be devastating for conventional MLE and LS based acoustic source localization methods. To solve this problem with less energy consumption is the focus of this paper. A contaminated Gaussian model is proposed for acoustic energy sensor readings and shown to be consistent with real-world experiment data. Then a novel energy-efficient robust acoustic source localization protocol (ERASLP) is introduced where each node examines its own observation by a local outlier rejection rule (LORR). Detected outliers will not be sent to the fusion center for the final localization result calculation. The average communication energy cost and applicability of ERASLP is analyzed and compared to typical centralized localization method and distributed optimization method. Simulation results show LORR can surpass more than a half of the outliers even with very sparsely deployed sensors and ERASLP has better tradeoff between robustness and energy consumption in most cases.

源语言英语
主期刊名Proceedings of the 30th Chinese Control Conference, CCC 2011
4957-4962
页数6
出版状态已出版 - 2011
活动30th Chinese Control Conference, CCC 2011 - Yantai, 中国
期限: 22 7月 201124 7月 2011

出版系列

姓名Proceedings of the 30th Chinese Control Conference, CCC 2011

会议

会议30th Chinese Control Conference, CCC 2011
国家/地区中国
Yantai
时期22/07/1124/07/11

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