Received signal strength based mobile positioning via constrained weighted least squares

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.