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Analysis on the Correlation Coefficient for the Diversity Technique Combined with Beamforming Using Measurement Data in Underwater Channel Environments
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 Title & Authors
Analysis on the Correlation Coefficient for the Diversity Technique Combined with Beamforming Using Measurement Data in Underwater Channel Environments
Kim, Min-Sang; Cho, Dae-Young; Park, Jong-Won; Lim, Yong-Kon; Ko, Hak-Lim;
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The diversity techniques can benefit underwater acoustic communications when the distance between sensors is sufficiently apart, and this leads to the increases in the physical size of the communication system: thus it is very hard to practically use such systems in real-environments. Therefore, in this paper, we have collected data from real underwater cannel environments in order to analyze the usability of diversity combined with beamforming techniques. And we have estimated the fading characteristics from the measurement data, and analyzed the correlation coefficients using the estimated fading characteristics. After analyzing the estimated fading characteristics from the measurements data, we found out that by applying diversity techniques on the output signals from beamformers that perform beamforming from different multipath directions, we can reduce the distance between sensors and at the same time benefit from the diversity gain.
MIMO;Beamforming;Underwater Communications;Diversity;Correlation Coefficient;
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