Received signal strength based mobile positioning via constrained weighted least squares

Author

Cheung, K.W. ; So, H.C. ; Ma, W.-K. ; Chan, Y.T.

Author_Institution

Dept. of Comput. Eng. & Inf. Technol., City Univ. of Hong Kong, China

Volume

5

fYear

2003

fDate

6-10 April 2003

Abstract

Location estimation of mobile telephones has received considerable interest in the field of wireless communications. In this paper, a simple and efficient positioning algorithm using received signal strength measurements obtained from at least three base stations are developed. Our proposed method is based on solving a nonconvex constrained weighted least squares problem. Simulation results show that the performance of the proposed method achieves the Cramer-Rao lower bound.

Keywords

concave programming; field strength measurement; least squares approximations; mobile radio; Cramer-Rao lower bound; constrained weighted least squares; location estimation; mobile positioning; mobile telephones; nonconvex problem; performance; received signal strength measurements; wireless communications; Base stations; FCC; GSM; Information technology; Least squares methods; Mobile handsets; Nonlinear equations; Position measurement; State estimation; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1199887

Filename

1199887