Subspace matching localization: a practical approach to mobile user localization in microcellular environments

Author

Nezafat, Mahdi ; Kaveh, Mostafa ; Tsuji, Hiroyuki ; Fukagawa, Takashi

Author_Institution

Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

7

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

5145

Abstract

In this paper, we present "subspace matching localization" as a technique for localizing non-cooperative transmitters in a microcellular environment dominated by non-line-of-sight (NLOS) propagation. using one base station that is equipped with one antenna array. The proposed method takes advantage of the dissimilarities in the multipath propagation characteristics of distinct locations in such an environment and site-specific ray tracing models to localize a transmitter. Issues regarding the coherency or non-coherency of multipath signals and effects of spatial smoothing on subspace matching localization are also addressed.

Keywords

antenna arrays; microcellular radio; mobility management (mobile radio); multipath channels; radio transmitters; radiowave propagation; ray tracing; NLOS propagation; base station antenna array; distinct locations; microcellular environments; mobile user localization; multipath propagation characteristics; multipath signal coherency; noncooperative transmitters; nonline-of-sight propagation; site-specific ray tracing models; spatial smoothing effects; subspace matching localization; transmitter localization; Antenna arrays; Antennas and propagation; Base stations; Covariance matrix; Mobile communication; Radio transmitters; Ray tracing; Signal generators; Spatial databases; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1405081

Filename

1405081