Title :
Location estimation and trajectory prediction for cellular networks with mobile base stations
Author :
Pathirana, Pubudu N. ; Savkin, Andrey V. ; Jha, Sanjay
Author_Institution :
Sch. of Eng. & Technol., Deakin Univ., Geelong, Vic., Australia
Abstract :
This paper provides mobility estimation and prediction for a variant of the GSM network that resembles an ad hoc wireless mobile network in which base stations and users are both mobile. We propose using a Robust Extended Kalman Filter (REKF) to derive an estimate of the mobile user´s next mobile base station from the user´s location, heading, and altitude, to improve connection reliability and bandwidth efficiency of the underlying system. Our analysis demonstrates that our algorithm can successfully track the mobile users with less system complexity, as it requires measurements from only one or two closest mobile base stations. Further, the technique is robust against system uncertainties caused by the inherent deterministic nature of the mobility model. Through simulation, we show the accuracy of our prediction algorithm and the simplicity of its implementation.
Keywords :
Kalman filters; ad hoc networks; cellular radio; computational complexity; mobility management (mobile radio); nonlinear filters; state estimation; telecommunication network reliability; GSM network; ad hoc network; cellular networks; computational complexity; location estimation; location tracking; mobile base stations; nonlinear measurement model; prediction algorithm; state estimation; trajectory prediction; Accuracy; Algorithm design and analysis; Bandwidth; Base stations; GSM; Land mobile radio cellular systems; Prediction algorithms; Predictive models; Robustness; Trajectory; 65; Ad hoc networks; CarNet; REKF; location tracking; mobility modeling; robust extended Kalman filter;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2004.836967