Source Localization from Received Signal Strength Under Log-Normal Shadowing: Bias and Variance

This paper considers statistical issues of source localization from received signal strength (RSS) measurements affected by log-normal shadowing with focus on bias and variance. We characterize the class of all unbiased estimates of the source position and show that their error variances grow expone...

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Bibliographic Details
Published in2009 2nd International Congress on Image and Signal Processing pp. 1 - 5
Main Authors Chitte, S.D., Dasgupta, S., Zhi Ding
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2009
Subjects
Algorithm design and analysis
Cities and towns
Gaussian noise
Monitoring
Pervasive computing
Random variables
Sensor phenomena and characterization
Shadow mapping
Time difference of arrival
Wireless sensor networks
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ISBN1424441293
9781424441297
DOI10.1109/CISP.2009.5301003

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Summary:This paper considers statistical issues of source localization from received signal strength (RSS) measurements affected by log-normal shadowing with focus on bias and variance. We characterize the class of all unbiased estimates of the source position and show that their error variances grow exponentially with the noise power. Finally, we propose an estimate the bias and error variance of which are both bounded in the noise power.
ISBN:1424441293
9781424441297
DOI:10.1109/CISP.2009.5301003