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http://dx.doi.org/10.5394/KINPR.2011.35.8.643

A Study on the Underwater Acoustic Communication with Direct Sequence Spread Spectrum  

Han, Jeong-Woo (Dept. of Radio Communication Engineering, Korea Maritime University)
Kim, Ki-Man (Dept. of Radio Communication Engineering, Korea Maritime University)
Son, Yoon-Jun (Defense Agency for Technology and Quality)
Abstract
In this paper, we study the application of DSSS(Direct Sequence Spread Spectrum) in underwater acoustic communication for robust the ISI(Inter-Symbol Interference. We confirm the application of DSSS in underwater acoustic communication in underwater by the simulation with underwater channel impulse response and experiment. As a simulation result, the BER of QPSK technique is $1.14{\times}10^{-1}$ and the BER of DSSS technique is $6.73{\times}10^{-3}$. And we performed the experiment of DSSS technique in underwater. As a experiment result, the BER of QPSK technique is $3.19{\times}10^{-1}$ and the BER of DSSS technique is $5.17{\times}10^{-4}$.
Keywords
Underwater acoustic communication; Multi-path; DSSS; Underwater communication experiment; BER; QPSK;
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Times Cited By KSCI : 1  (Citation Analysis)
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