Performance of a handset-assisted positioning method for GSM

Author

Villier, Eric ; Lopes, Luis ; Ludden, Brendan

Author_Institution

Motorola, Swindon, UK

Volume

3

fYear

1999

fDate

36342

Firstpage

1967

Abstract

This paper illustrates the performance of a mobile positioning technique applicable to a GSM network. The technique relies on the time-of-arrival estimation of some known signals. An improved version of a standard estimator is proposed in order to mitigate the effect of multipath propagation, and its performance is illustrated through simulations in various environments. A mobile station monitoring the broadcast carrier of several base stations uses this algorithm to estimate the pseudo-ranges between itself and the transmitters. These measurements are then fed to a fixing algorithm to deliver an estimate of the mobile position. The performance of the positioning method is assessed in some typical urban, suburban and rural environments. It shows promising results for the deployment of location-based applications

Keywords

cellular radio; multipath channels; parameter estimation; radio direction-finding; radio networks; telephone sets; GSM network; algorithm; base stations; broadcast carrier monitoring; fixing algorithm; handset-assisted positioning method; location-based applications; mobile position estimation; mobile station; multipath propagation; performance; pseudo-range estimation; rural environment; simulations; standard estimator; suburban environment; time-of-arrival estimation; transmitters; urban environment; Base stations; Broadcasting; Delay estimation; GSM; Mobile radio mobility management; Monitoring; Position measurement; Time of arrival estimation; Timing; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778385

Filename

778385