Title :
Bootstrapping M-estimators for reducing errors due to non-line-of-sight (NLOS) propagation
Author :
Sun, Guo-Lin ; Guo, Wei
Author_Institution :
Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Mobile positioning is made difficult by nonsymmetric contamination of measured time-of-arrival (TOA) data caused by non-line-of-sight (NLOS) propagation. In this letter, a robust NLOS error mitigation algorithm based on Bootstrapping M-estimation is proposed without prior NLOS error distribution. A simulation comparison is performed in different channel environments between the proposed algorithm and two additional ones (least-square and Huber estimator). The proposed algorithm clearly outperforms the other two.
Keywords :
bootstrapping; mobile communication; bootstrapping M-estimators; error mitigation algorithm; mobile positioning; nonline-of-sight propagation; time-of-arrival; Base stations; Contamination; Measurement standards; Noise measurement; Pollution measurement; Position measurement; Random variables; Robustness; Sun; Working environment noise; Bootstrapping; Huber estimator; NLOS; non-line-of-sight;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.833831
