The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Study on Performance of Double Binary Turbo Code for Power Line Communication Systems Base on OFDM

OFDM 기반의 전력선 통신 시스템에서 이중 이진 터보 부호 성능 연구

  • 김진영 (광운대학교 전파공학과) ;
  • 차재상 (서울산업대학교 매체공학과) ;
  • 김성권 (서울산업대학교 매체공학과) ;
  • 이종주 (한국전기연구원) ;
  • 김재현 (서경대학교 산업공학과) ;
  • 이종훈 (서울산업대학교 스포츠건강학과) ;
  • 김은철 (광운대학교 전파공학과)
  • Received : 2009.05.22
  • Published : 2009.06.30
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Abstract

Powerline communications (PLC) technology has been discussed and analyzed as a highly potential candidate of wireline access network solutions. In this paper, performance of double binary turbo coded orthogonal frequency division multiplexing (OFDM) system is analyzed and simulated in power line communications channel. In order to make power line channel environments, Bernoulli-Gaussian noise is considered. The performance is evaluated in terms of bit error probability. From the simulation results, it is demonstrated that the double binary turbo coding scheme offers considerable coding gain with reasonable encoding complexity. It is also shown that the system performance can be substantially improved by increasing the number of iterations.

전력선 통신(PLC : Power Line Communication) 기술은 유선 액세스 네트워크 솔류션 중 높은 잠재력을 갖고 있는 후보로서 논의되고 있다. 본 논문에서는 PLC 채널에서 이중 이진 터보 부호(DBTC : Double Binary Turbo Code) 성능에 대해 연구하였다. PLC 채널 환경을 만들기 위해 Bernoulli-Gaussian 잡음을 고려하였다. 시스템 성능은 비트 오류 확률 측면에서 분석되었다. 실험 결과로부터 이중 이진 터보 부호화는 상당한 부호화 이득을 제공하는 것을 확인할 수 있었다. 또한 터보 복호 과정에서 복호 횟수를 증가시킴에 따라서 시스템 성능이 향상되는 것을 확인할 수 있었다.

Keywords

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