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http://dx.doi.org/10.17661/jkiiect.2018.11.3.246

Underwater Laser Communication Using LDPC Coded Method  

Lee, A-Hyun (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Baek, Chang-Uk (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Lee, Dong-Hun (Agency for Defense Development)
Jung, Ji-Won (Department of Radio Communication Engineering, Korea Maritime and Ocean University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.11, no.3, 2018 , pp. 246-252 More about this Journal
Abstract
Recent studies have been received much attention on underwater laser communication, which is capable of high data rate. However, in underwater laser communication, distortions caused by absorption and scattering induced performance degradation. A typical way to improve performance is to apply channel coding technique. In the beginning of studies, simple methods such as RS and BCH coding techniques were applied. However, due to distance expansion and performance improvement, channel coding methods with low error probability such as LDPC coded method were applied. In this paper, we analyzed the performance according to the size of the code word N, the distance between the transceivers and the size of the M of the M-ary PPM modulation scheme. Simulation results show that parameter M of M-ary PPM is most effect on performance.
Keywords
blue-green laser; channel coding; LDPC; M-ary PPM; underwater laser communication;
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