Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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The Study about Channel code to Overcome Multipath of Underwater Channel

수중통신채널에서 다중경로 극복을 위한 오류정정부호에 대한 연구

  • 김남수 (한국해양대학교 전파공학과) ;
  • 김민혁 (한국해양대학교 전파공학과) ;
  • 박태두 (한국해양대학교 전파공학과) ;
  • 김철승 (한국해양대학교 전파공학과) ;
  • 정지원 (한국해양대학교 전파공학과)
  • Published : 2009.07.31
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Abstract

Underwater acoustic communication has multipath error because of reflection by sea-level and sea-bottom. The multipath of underwater channel causes receive signal to make error floor. In this paper, we propose the underwater communication system using various channel coding schemes such as RS coding, convolutional code, turbo code and concatenated code for overcoming the multipath effect in underwater channel. As shown in simulation results, characteristic of multipath error is similar to that of random error. So interleaver has not effect on error correcting. For correcting of error floor by multipath, it is necessary to use strong channel codes like turbo code. Turbo code is one of the iterative codes. And the performance of concatenated codes including RS code has better performance than using singular channel codes.

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References

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