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Sensors 2012, 12(3), 3605-3626; doi:10.3390/s120303605

On the Statistical Errors of RADAR Location Sensor Networks with Built-In Wi-Fi Gaussian Linear Fingerprints

Communication Research Center, School of Electronics and Information Engineering, Harbin Institute of Technology, 2 Yikuang Street, Nangang District, Harbin, Heilongjiang 150080, China
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Received: 28 January 2012 / Revised: 1 March 2012 / Accepted: 1 March 2012 / Published: 15 March 2012
(This article belongs to the Section Sensor Networks)

Abstract

The expected errors of RADAR sensor networks with linear probabilistic location fingerprints inside buildings with varying Wi-Fi Gaussian strength are discussed. As far as we know, the statistical errors of equal and unequal-weighted RADAR networks have been suggested as a better way to evaluate the behavior of different system parameters and the deployment of reference points (RPs). However, up to now, there is still not enough related work on the relations between the statistical errors, system parameters, number and interval of the RPs, let alone calculating the correlated analytical expressions of concern. Therefore, in response to this compelling problem, under a simple linear distribution model, much attention will be paid to the mathematical relations of the linear expected errors, number of neighbors, number and interval of RPs, parameters in logarithmic attenuation model and variations of radio signal strength (RSS) at the test point (TP) with the purpose of constructing more practical and reliable RADAR location sensor networks (RLSNs) and also guaranteeing the accuracy requirements for the location based services in future ubiquitous context-awareness environments. Moreover, the numerical results and some real experimental evaluations of the error theories addressed in this paper will also be presented for our future extended analysis. View Full-Text
Keywords: RADAR localization; RSS sensing; statistical errors; probabilistic fingerprints; Gaussian distribution RADAR localization; RSS sensing; statistical errors; probabilistic fingerprints; Gaussian distribution
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Zhou, M.; Xu, Y.B.; Ma, L.; Tian, S. On the Statistical Errors of RADAR Location Sensor Networks with Built-In Wi-Fi Gaussian Linear Fingerprints. Sensors 2012, 12, 3605-3626.

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