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http://dx.doi.org/10.7776/ASK.2013.32.2.124

Performance Analysis of Underwater Acoustic Communication Systems with Turbo Equalization in Korean Littoral Sea  

Park, Tae-Doo (한국해양대학교 전파공학과)
Han, Jeong-Woo (한국해양대학교 전파공학과)
Jung, Ji-Won (한국해양대학교 전파공학과)
Kim, Ki-Man (한국해양대학교 전파공학과)
Lee, Sang-Kook (국방과학연구소)
Chun, Seung-Yong (국방과학연구소)
Son, Kweon (국방과학연구소)
Publication Information
The Journal of the Acoustical Society of Korea / v.32, no.2, 2013 , pp. 124-130 More about this Journal
Abstract
The performance of underwater acoustic communication system is sensitive to the ISI(Inter-Symbol Interference) due to delay spread develop of multipath signal propagation. The equalizer is used to combat the ISI. In this paper, the performances of underwater acoustic communication with turbo equalizer were evaluated by real data collected in Korean littoral sea. As a result, when one iterative decoding using turbo equalizer is applied, the performance was improved 1.5 dB than the case of the non-iterative equalizer at BER $10^{-4}$. In the case of two or three iterations the performance was enhanced about 3.5 dB, but the performance wasn't improved any more in the case of more than three times.
Keywords
Underwater acoustic communication; Turbo equalization; Channel impulse response; Bit Error Rate(BER); Channel coding; Interleaver;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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