Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199887
