Title :
Estimating position and velocity of mobiles in a cellular radio network
Author :
Hellebrandt, Martin ; Mathar, Rudolf ; Scheibenbogen, Markus
Author_Institution :
Aachen Univ. of Technol., Germany
fDate :
2/1/1997 12:00:00 AM
Abstract :
Determining the position and velocity of mobiles is an important issue for hierarchical cellular networks since the efficient allocation of mobiles to large or microcells depends on its present velocity. We suggest a method of tracing a mobile by evaluating subsequent signal-strength measurements to different base stations. The required data are available in the Global System for Mobile (GSM) system. The basic idea resembles multidimensional scaling (MDS), a well-recognized method in statistical data analysis. Furthermore, the raw data are smoothed by a linear regression setup that simultaneously yields an elegant, smoothed estimator of the mobile´s speed. The method is extensively tested for data generated by the simulation tool GOOSE
Keywords :
cellular radio; field strength measurement; frequency allocation; land mobile radio; parameter estimation; position measurement; radio networks; smoothing methods; statistical analysis; velocity measurement; GOOSE simulation tool; GSM system; Global System for Mobile; base stations; cellular radio network; channel assignment; hierarchical cellular networks; linear regression; microcells; mobile speed estimation; multidimensional scaling; position estimation; radiowave propagation; signal strength measurements; smoothed estimator; statistical data analysis; velocity estimation; Base stations; GSM; Global Positioning System; Intelligent networks; Land mobile radio cellular systems; Microcell networks; Multiaccess communication; Radio transmitters; Time division multiple access; Vehicles;
Journal_Title :
Vehicular Technology, IEEE Transactions on
