Search results for "Fingerprint database"

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RF-Based Location Using Interpolation Functions to Reduce Fingerprint Mapping

2015

Indoor RF-based localization using fingerprint mapping requires an initial training step, which represents a time consuming process. This location methodology needs a database conformed with RSSI (Radio Signal Strength Indicator) measures from the communication transceivers taken at specific locations within the localization area. But, the real world localization environment is dynamic and it is necessary to rebuild the fingerprint database when some environmental changes are made. This paper explores the use of different interpolation functions to complete the fingerprint mapping needed to achieve the sought accuracy, thereby reducing the effort in the training step. Also, different distri…

Engineering802.15.4 networkscomputer.software_genrelcsh:Chemical technologyBiochemistryArticleAnalytical ChemistryRF-Locationlcsh:TP1-1185Electrical and Electronic Engineeringfinger-printingInstrumentationbusiness.industryFingerprint (computing)Process (computing)Pattern recognitionRadio signal strengthAtomic and Molecular Physics and OpticsinterpolationInitial trainingFingerprint databaseData miningArtificial intelligenceTransceiverbusinesscomputerInterpolationSensors
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Wireless Internet. 8th International Conference, WICON 2014, Lisbon, Portugal, November 13-14, 2014, Revised Selected Papers

2015

In this paper, the influence and improvement of the localization accuracy achieved using a fingerprint database with information coming from different channels and radio signal strength levels is evaluated. This study uses IEEE 802.15.4 networks with different power levels and carrier frequency channels in the 2.4 GHz band. Experimental results show that selecting part of this information with a cleverer data processing can provide similar or better localization accuracy than using the whole database.

IEEE 802.15.4Data processingCarrier signalFingerprint databaseComputer scienceElectronic engineeringIndoor locationRadio signal strengthFingerprintingSignalPower (physics)
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