The Journal of the Acoustical Society of Korea (한국음향학회지)

The Acoustical Society of Korea (한국음향학회)
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SC-FDE System Using Decision-Directed Method Over Time-Variant Fading Channels

시변 페이딩 채널에 대한 결정 지향 방식의 SC-FDE 시스템

  • 김지헌 (국방과학연구소 제3기술연구본부) ;
  • 양진모 (국방과학연구소 제3기술연구본부) ;
  • 김환우 (충남대학교 정보통신공학부)
  • Published : 2007.08.31
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Abstract

This paper describes a transmission method based on a single carrier with frequency domain equalization (SC-FDE) scheme with cyclic prefix(CP). The SC-FDE has similar features with orthogonal frequency division multiplexing(OFDM). Similar to OFDM, a SC-FDE system is computationally efficient since equalization is reformed on a block of data in the frequency domain. Especially, it has the advantage of low sensitivity to nonlinear distortion compared to OFDM. In this paper, we design a SC-FDE receiver using decision-directed method, and present simulation results.

본 논문은 CP(Cyclic Prefix)를 사용한 SC-FDE(Single Carrier with Frequency Domain Equalization) 기반의 전송 방식에 대해 기술하였다. SC-FBE 방식은 OFDM(Orthogonal Frequency Division Multiplexing)과 기능 구성이 유사하며, OFDM과 유사하게 주파수 영역에서 블록 단위로 효율적인 등화 수행이 가능하다. 특별히 단일 반송파 방식은 OFDM에 비해 비선형 왜곡에 상대적으로 덜 민감한 장점을 가지고 있다. 본 논문에서는 결정 지향 방식의 SC-FDE 수신부를 설계하고, 시뮬레이션을 통해 성능 결과를 제시하였다.

Keywords

References

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