Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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An Orthogonal Multicarrier DS/CDMA System Based on Convolutional Coding

길쌈부호화를 바탕으로 한 직교 다중반송파 직접수열 부호분할 다중접속 시스템

  • Kim, Yun-Hui (Dept. of Electronic Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Lee, Ju-Mi (Dept. of Electronic Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Song, Ik-Ho (Dept. of Electronic Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Kim, Hong-Gil (Dept. of Electronic Computer Science, Korea Advanced Institute of Science and Technology) ;
  • Kim, Seok-Chan (Dept. of Electronic Computer Science, Korea Advanced Institute of Science and Technology)
  • 김윤희 (한국과학기술원 전자전산학과) ;
  • 이주미 (한국과학기술원 전자전산학과) ;
  • 송익호 (한국과학기술원 전자전산학과) ;
  • 김홍길 (한국과학기술원 전자전산학과) ;
  • 김석찬 (한국과학기술원 전자전산학과)
  • Published : 2000.04.01
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Abstract

In this paper, we propose to transmit convolutionally coded DS waveforms over orthogonally overlapped subchannels. It is shown that the proposed system, the convolutionally coded orthogonal multicarrier DS/CDMA system, significantly outperforms the system using frequency diversity combining. It is also shown that the proposed system has better performance than the convolutionally coded almost non-overlapped multicarrier DS/CDMA system under the condition that the information rate and total available bandwidth are the same.

이 논문에서는 길쌈부호화한 비트들을 서로 직교하며 겹치는 부채널로 보내는 다중반송파 방식을 제안한다. 제안한 시스템, 곧 길쌈 부호화 직교 다중반송파 직접수열 부호분할 다중접속 시스템이 주파수 다양성을 쓰는 시스템보다 훨씬 뛰어난 성능을 가짐을 보인다. 그뿐만 아니라 정보율과 쓸 수 있는 대역폭이 같으면 제안한 시스템이 거의 겹침이 없는 다중반송파 직접수열 부호분할 다중접속 시스템보다 좋은 성능을 가짐을 보인다.

Keywords

References

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