The location of mobile users served by cellular networks is considered. The chosen approach assumes that location is estimated through angular triangulation with three base stations (BSs). New estimates are proposed, which are described by closed-form expressions, and are alternatives to the maximum likelihood estimate. It is shown that the accuracy of the estimate coinciding with incircle center of the bearing triangle is close to the accuracy of the maximum likelihood estimate.
References
[1]
J. Edwards, “TELECOSMOS: The next great telecom revolution,” John Wiley & Sons, New York, 2005.
[2]
FCC Docket No. 94-102, “In the Matter of Revision of the Commission’s Rules to Ensure Compatibility with Enhanced 911 Emergency Calling Systems,” Third report and order, FCC 99-245, 1999.
[3]
O. Besson, F. Vincent, P. Stoica, and A. B. Gershman, “Approximate Maximum Likelihood Estimators for Array Processing in Multiplicative Noise Environments,” IEEE Transactions on Signal Processing, Vol. 48, No. 9, 2000, pp. 2506-2518.
[4]
S. Valaee, B. Champagne and P. Kabal, “Parametric Localization of Distributed Sources,” IEEE Transactions on Signal Processing, Vol. 43, No. 9, 1995, pp. 2144-2153.
[5]
V. T. Ermolayev, A. G. Flaksman, D. D. N. Bevan and I. M. Averin, “Estimation of the Mobile User Position in the Cellular Communication System in a Multipath Environment of Signal Propagation,” Radiophysics and Quantum Electronics, Vol. 51, No. 2, 2008, pp. 145-152.
[6]
D. D. N. Bevan, V. T. Ermolayev, A. G. Flaksman and I. M. Averin, “Gaussian Channel Model for Mobile Multipath Environment,” EURASIP Journal on Applied Signal Processing, Vol. 2004, No. 9, 2004, pp. 1321-1329.
