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A Decentralized Positioning Method Based on Recursive Weighted Least Absolute Value Optimization for Wireless Sensor Networks

delete2014-01-01
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PRE
AI
D
Dong-Shing Wu *
C
Chin-Liang Wang
DOI:10.1109/LSP.2013.2288037delete
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摘要

摘要

En 中文
This letter presents a new positioning method based on recursive weighted least absolute value (RWLAV) optimization for wireless sensor networks. The proposed method is derived by minimizing a recursive-in-time cost function and can be realized in a decentralized and iterative manner. During each iteration, the target's location is computed by taking a weighted average (in terms of the measurement's reliability) of the previous location estimate and the local observation that is expressed as the difference between the previous location estimate and the current sub-gradient value. Computer simulation results show that the RWLAV method performs better than previous related methods.
Keyword:
Decentralized methods
least absolute value optimization
positioning
recursive methods
wireless sensor networks

期刊

IEEE Signal Processing Magazine 封面图
IEEE Signal Processing Magazine
IF:
9.6
论文数:
1.1W
被引数:
1.7W

机构

N
National Tsing Hua University
学者数:
1.6W
论文数: 1.4W
被引数: 1.7W
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