Wireless Personal Communications

, Volume 65, Issue 1, pp 1–13

Robust Mobile Location Estimation Using Hybrid TOA/AOA Measurements in Cellular Systems

Article

DOI: 10.1007/s11277-011-0224-8

Cite this article as:
Chang, AC. & Chang, JC. Wireless Pers Commun (2012) 65: 1. doi:10.1007/s11277-011-0224-8

Abstract

Estimating a location of mobile station is considerable interest in wireless cellular systems. This letter deals with a hybrid time-of-arrival (TOA)/angle-of-arrival (AOA) mobile location estimation under relatively low signal-to-noise ratio and moderately nonline-of-sight (NLOS) scenarios. To reduce location estimation errors, a robust estimator for hybrid TOA/AOA location systems is proposed by using the minimax mean-squared error (MSE) criterion. Simulation results demonstrate that the proposed estimator significantly outperforms the other least squares estimators.

Keywords

Cellular systems Position location Model uncertainty Time-of-arrival Angle-of-arrival Least squares Minimax MSE 

Copyright information

© Springer Science+Business Media, LLC. 2011

Authors and Affiliations

  1. 1.Department of Information TechnologyLing Tung UniversityTaichungTaiwan, R.O.C.

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