Title :
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
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;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230418
