Performance estimations of mobile terminal location with database correlation in UMTS networks

Ahonen, Suvi; Eskelinen, Pekka

doi:10.1049/cp:20030404

Cited by 7 publications

(3 citation statements)

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“…This would result in errors for AOA method. Efficient computing and signal processing algorithms have been designed to mitigate the effect of multipath, for example, the database correlation method (DCM) enables positioning with fewer measurements and avoids multipath problems [33], super resolution methods for AOA such as Root-MUSIC [34].…”

Section: Challenges In Cellular Network For Positioningmentioning

confidence: 99%

Mobile positioning based on relaying capability of mobile stations in hybrid wireless networks

2006

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A novel mobile position location procedure, based on the relaying capability of the mobile stations in a hybrid cellular/peer-to-peer ad hoc network to improve positioning coverage and accuracy, is proposed. The proposed mobile location scheme is a hierarchical-structured flooding procedure, making use of the relaying capability of mobile stations to achieve location diversity. Simulation results show that the proposed positioning scheme offers improvement in coverage and accuracy compared to conventional positioning methods reported in the literature. With the increase of the mobiles in the system, the coverage of the conventional system does not change. However, the coverage of the proposed discovery mechanism monotonically increases towards 100% by exploiting location diversity. The gain of the coverage is also promising when cell size is large, where the conventional methods suffer the hearability problem.

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Section: Challenges In Cellular Network For Positioningmentioning

confidence: 99%

Mobile positioning based on relaying capability of mobile stations in hybrid wireless networks

2006

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“…This can be used to significantly improve the pattern recognition stage. In [7], the CIR-based location fingerprinting was first introduced for cellular technology. The statistics of the CIR as fingerprints were implemented in [8], where RMS delay spread, number of multipath components, and power were used in a neural network framework for localization in mines.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of CIR based location fingerprinting

Khanbashi

Alsindi

Al-Araji

et al. 2012

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC)

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Location fingerprinting has received considerable attention as a practical solution to the indoor localization problem. Specifically Received Signal Strength (RSS) based fingerprinting has been studied extensively and some improvements in performance have been reported for certain pattern recognition algorithms. Recently channel impulse response (CIR) based fingerprinting received attention due to its potential for significant improvements in accuracy. The performance evaluation of CIR fingerprinting, however, has not been addressed adequately in literature. This paper presents the performance evaluation of CIR location fingerprinting in an indoor environment. A simulation framework has been developed using the Ray-Tracing software to emulate the indoor wireless channel. The CIR-based simulation results showed noticeable improvements in the location estimation compared to the RSSbased approach. The paper highlights new findings for some parameters that affect the performance of the CIR-based fingerprinting with respect to the system bandwidth and training point spacing.

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“…For LF, multipoint signal reception is not required: the system can use data for only a signal point to determine location. Ahonen and Eskelinen suggest using the measured Power Delay Profiles (PDPs) in the database [12], [13]. Thus, the location estimation is possible by using only one BS due to the additional information provided by the PDP, i.e., amplitudes and delays of the multipath components.…”

Section: Introductionmentioning

confidence: 99%

Mobile Terminal Positioning via Power Delay Profile Fingerprinting: Reproducible Validation Simulations

Triki

Slock

Rigal

et al. 2006

IEEE Vehicular Technology Conference

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Non-Line-of-Sight and multipath propagation conditions pose significant problems for most mobile terminal positioning approaches. In contrast, power delay profile fingerprinting (PDP-F) thrives on multipath propagation. This multipath extension of T(D)oA is based on matching an estimated power delay profile from one or several base stations (BSs) (or other transmitters (broadcast, ...)) with a memorized power delay profile map for a given cell. With a single BS, an absolute time reference is required as for ToA. With multiple BSs, that requirement can be dropped as in TDoA. We propose a validation of PDP-F via simulations that can easily be reproduced. The multicellular environment consists of a big box in which multipath arises by reflection off the six sides. The resulting PDP depends on the positions of BS and terminal, the attenuation mechanism and the reflection coefficients of the six sides. We also propose an extension of the PDP-F (PSDP-F) taking into account spatial information available with an multi-antenna reception.PSDP-F can be considered as a multipath extension of the combined T(D)oA and AoA methods, without explicit requirement for antenna array calibration.

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Performance estimations of mobile terminal location with database correlation in UMTS networks

Cited by 7 publications

References 0 publications

Mobile positioning based on relaying capability of mobile stations in hybrid wireless networks

Mobile positioning based on relaying capability of mobile stations in hybrid wireless networks

Performance evaluation of CIR based location fingerprinting

Mobile Terminal Positioning via Power Delay Profile Fingerprinting: Reproducible Validation Simulations

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