General Selection Criteria for Mobile Location in NLoS Situations

Author

Bartelmaos, S. ; Abed-Meraim, K. ; Grosicki, E.

Author_Institution

Dept. of Signal Process. & Comput. Eng., ENST, Paris

Volume

7

Issue

11

fYear

2008

fDate

11/1/2008 12:00:00 AM

Firstpage

4393

Lastpage

4403

Abstract

This paper presents a new mobile station (MS) localization method using round trip time (RTT) measurements in the UMTS-FDD [1]. Three or more base stations (BS) performing RTT measurements of a signal from a mobile station (MS) are necessary for its localization. However, when some of the measurements are from non-line-of-sight (NLoS) paths, the location errors can be very large. We propose a method that takes into account possible large RTT error measurements caused by NLoS. To this end, the new method measures the best coherence between the RTT estimates and allows the mobile to select the three most reliable measures. This method does not depend on a particular distribution of the NLoS error and allows the selection of the least dasianoisypsila RTT when all measurements are of LoS type. Theoretical analysis is provided to assess the performance gain of our proposed algorithm and validated by realistic simulation results.

Keywords

3G mobile communication; mobile radio; NLoS situations; UMTS-FDD; general selection criteria; mobile location; mobile station localization method; nonline-of-sight paths; round trip time error measurements; 3G mobile communication; Algorithm design and analysis; Base stations; Particle measurements; Performance analysis; Performance evaluation; Semiconductor device measurement; Time difference of arrival; Time measurement; Wireless communication; Mobile positioning; coherence criterion; non-Line-of-sight (NLoS); round trip time (RTT);

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/T-WC.2008.070919

Filename

4684615