Minimax Mean-Squared Error Location Estimation Using TOA Measurements

Chih-Chang SHEN  Ann-Chen CHANG  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.8   pp.2223-2225
Publication Date: 2010/08/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2223
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Sensing
time-of-arrival,  mobile location,  minimax,  mean-squared error,  least squares,  

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This letter deals with mobile location estimation based on a minimax mean-squared error (MSE) algorithm using time-of-arrival (TOA) measurements for mitigating the nonline-of-sight (NLOS) effects in cellular systems. Simulation results are provided for illustrating the minimax MSE estimator yields good performance than the other least squares and weighted least squares estimators under relatively low signal-to-noise ratio and moderately NLOS conditions.