Position and velocity tracking in mobile cellular networks using the particle filter

This paper presents a new method for tracking a mobile based on Aulin's wave scattering model. This model takes into account non line of sight and multipath propagation environments, which are usually encountered in wireless fading channels. According to Aulin's model, the received instantaneous electric field at the base station is a nonlinear function of the mobile location and velocity. A method based on particle filtering (sequential Monte Carlo methods) that copes with nonlinearities in order to estimate the mobile location and velocity is proposed. In contrast to standard target tracking literature we do not rely on linearized motion models, measurement relations, and Gaussian assumptions. Numerical results are presented to evaluate the accuracy of the proposed method. They demonstrate significant accuracy improvement over known algorithms.