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http://dx.doi.org/10.6109/JKIICE.2009.13.11.2295

Performance Analysis of LDPC code with Channel Estimation in Underwater Communication  

Kim, Nam-Soo (한국해양대학교 전파공학과)
Jung, Ji-Won (한국해양대학교 전파공학과)
Kim, Ki-Man (한국해양대학교 전파공학과)
Seo, Dong-Hoan (한국해양대학교 전기전자공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.11, 2009 , pp. 2295-2303 More about this Journal
Abstract
Underwater acoustic(UWA) communication has multipath error because of reflection by sea-level and sea-bottom. The multipath of UWA channel causes signal distortion and error floor. In this paper, we proposed the compensation method of multipath effect using the impulse response of the UWA channel and then analysis the performance of channel coding such as LDPC code, concatenate code. Also we analysed the time-delay errors and estimated amplitude errors of estimated channel information and its affection on the performance. As shown in simulation results, the performance of proposed compensation method is better than the performance of conventional method.
Keywords
underwater acoustic(UWA) communications; LDPC codes; intersymbol interference (ISI);
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