TOA-based robust location algorithms for wireless cellular networks |
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Authors: | Guolin Sun Wei Guo |
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Affiliation: | Institute of Communication and Information Engineering, UESTC, Chengdu 610054, China |
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Abstract: | Caused by Non-Line-Of-Sight (NLOS) propagation effect, the non-symmetric contamination of measured Time Of Arrival (TOA) data leads to high inaccuracies of the conventional TOA based mobile location techniques. Robust position estimation method based on bootstrapping M-estimation and Huber estimator are proposed to mitigate the effects of NLOS propagation on the location error. Simulation results show the improvement over traditional Least-Square (LS) algorithm on location accuracy under different channel environments. |
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Keywords: | Time Of Arrival (TOA) Non-Line-Of-Sight (NLOS) Huber estimator Bootstrapping |
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