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http://dx.doi.org/10.6109/jkiice.2008.12.10.1780

A Study on OFDM Technique for High-speed Data Transmission in Underwater  

Han, Jeong-Woo (한국해양대학교 공과대학 전파공학과)
Kim, Se-Young (한국해양대학교 공과대학 전파공학과)
Kim, Ki-Man (한국해양대학교 공과대학 전파공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.10, 2008 , pp. 1780-1786 More about this Journal
Abstract
The performance of underwater wireless communication system is influenced on channel characteristic. Especially, a delay spread cause by reverberation and multi-path happen the ISI (Inter Symbol Interference) and reduces the communication performance. In this paper, we study the application of high speed data transmission in underwater to use the OFDM (Orthogonal Frequency Division Multiplexing) technique for robust the reverberation and multi-path. we confirm the performance of communication in underwater to use the model for actually underwater channel simulation model. As a result, we acquired the BER of modulation techniques. The BER of single carrier is $2{\times}10^{-1}$ and BER of multi currier is $8{\times}10^{-2}$ in 1000m. Transmission of single carrier is 5 kbps.
Keywords
Underwater Communication; Multi Path; ISI; QPSK; OFDM;
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