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http://dx.doi.org/10.6109/jkiice.2019.23.11.1434

Performance Analysis of OFDM-based Underwater Acoustic Communication System by Repeated Transmit Diversity Technique  

Chae, Kwang-Young (Department of Array Signal Processing, Hoseo University)
Ko, Hak-Lim (Department of Array Signal Processing, Hoseo University)
Kim, Min-Sang (Department of Array Signal Processing, Hoseo University)
Cho, Yong-Ho (Oceanic IT Convergence Technology Research Center, Hoseo University)
Im, Tae-Ho (Oceanic IT Convergence Technology Research Center, Hoseo University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.23, no.11, 2019 , pp. 1434-1442 More about this Journal
Abstract
In this paper, the channel change was continuously measured for 24 hours from July 5, 2017 on the coast near Deokjeok-do, Incheon. The underwater channel has various channel environment characteristics as the change in the time axis and the change in the frequency axis occurs in real time, and the underwater communication performance decreases due to the multipath fading and the Doppler effect. Therefore, in this study, we performed the OFDM system performance analysis in the underwater channel environment by applying the repetitive transmission diversity scheme in the time and frequency domain to improve the communication performance in the real-world underwater communication environment. Using the collected data, we compared the channel environment in the time and frequency domain and analyzed the BER performance according to the pilot spacing and the number of repetitive transmissions in the time and frequency axis.
Keywords
Underwater Acoustic Communication; OFDM; Time Diversity; Frequency Diversity; Repetition;
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Times Cited By KSCI : 1  (Citation Analysis)
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