Mobile station localization in wireless cellular systems using UTDOA

Author

Mardeni, R. ; Shahabi, Paria ; Riahimanesh, Mohsen

Author_Institution

Fac. of Eng., Multimedia Univ., Cyberjaya, Malaysia

Volume

5

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

Uplink time difference of arrival (UTDOA) mobile station (MS) localization in cellular systems at spatially separated base stations with known locations is proposed. The UTDOA estimation is implemented using a normalized least mean square (NLMS) based adaptive line enhancer (ALE) followed by a cross correlation. More precisely, the use of ALE-pre-filtered cross correlation is proposed in hyperbolic localization to improve the accuracy of TDOA estimation for reducing the uncertainty in localizing the mobile station. Computer simulation results indicate that proposed ALE-UTDOA technique can achieve superior positioning accuracy than conventional cross correlation (CC) based method.

Keywords

cellular radio; correlation methods; direction-of-arrival estimation; filtering theory; least mean squares methods; time-of-arrival estimation; ALE-pre-filtered cross correlation method; MS localization; NLMS; UTDOA estimation; adaptive line enhancer; base stations; computer simulation; hyperbolic localization; mobile station localization; normalized least mean square method; uplink time difference of arrival localization; wireless cellular systems; Accuracy; Base stations; Correlation; Estimation; Mathematical model; Mobile communication; Signal to noise ratio; ALE; UTDOA; position location;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230418

Filename

6230418