한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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디지털 비디오 방송-지상파에서 연쇄 터보 부호화의 성능분석

Performance Analysis of Concatenated Turbo Coding Scheme over DVB-T Transmission Channel

  • 장극 (북경석유화공학원) ;
  • 서희종 (전남대학교 전자통신공학과)
  • 투고 : 2017.12.13
  • 심사 : 2018.02.15
  • 발행 : 2018.02.28
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초록

본 논문에서는 OFDM(Orthogonal Frequency-Division Multiplexing)에서 터보코드, RS(Reed-Solomon)코드를 연구하고, DVB-T(digital terrestrial video broadcasting)에서 OFDM에 적용된 FEC(Forward Error Correct)의 성능을 분석한다. 그리고 표준 AWGN 통신로의 경우와 비교한다. 모의실험을 한 결과 반복해서 터보코드를 사용하면 성능이 현저히 개선됨을 확인할 수 있었다. 이는 컨케이트네이티드 FEC에 적절한 인터리버를 적용해서 구현가능 할 것이다.

This paper studies the Turbo Codes, the concatenation of Turbo Codes and Reed-Solomon (RS) codes on Orthogonal frequency-division multiplexing (OFDM) in digital communication channel, and then analysis the performances of the new concatenated Forward Error Correct (FEC) scheme applied to an OFDM system based on the digital terrestrial video broadcasting (DVB-T) scheme. We compared the results with the standard DVB-T convolutional codes performances on Additive White Gaussian Noise (AWGN) channels. The simulation results shown that by employing turbo codes with only a few numbers of iterations, the performances of the overall system can be improved significantly. These results will be obtained by applying an appropriate interleaver technique in the concatenated FEC procedure.

키워드

참고문헌

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