한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제32권4C호
  • /
  • Pages.447-453
  • /
  • 2007
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  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

$2GHz{\sim}10GHz$ 무선 채널 환경에서 비례 적응형 등화기를 이용한 SC-FDE 시스템 구현과 성능분석

Analysis of Performance for SC-FDE Systems Using Proportional Adaptive Equalizer in $2GHz{\sim}10GHz$ Frequency Radio Channel Models

  • 양용석 (공주대 전기전자정보공학과 신호처리 연구실) ;
  • 이규대 (공주대 전기전자정보공학과 신호처리 연구실)
  • 발행 : 2007.04.30
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⟨ 이전 논문 다음 논문 ⟩

초록

다중 경로 페이딩 환경에서 OFDM(Orthogonal frequency Division Multiplexing)방식은 보호 구간 및 주파수영역 등화로 심벌 및 채널 간 간섭을 방지하는 특성을 가지는 반면 전송신호의 PAPR(Peak-to-Average Power Ratio)크다는 것이다. SC-FDE(Single Carrier with Frequency Domain Equalization)방식은 OFDM과 유사한 성능을 가지면서 상대적으로 PAPR이 적은 반면 등화기가 복잡하다. 본 논문에서는 SC-FDE시스템을 위한 주파수영역 비례 적응형 등화기를 제안하고, $2GHz\;{\sim}\;10GHz$ 대역의 다양한 채널모델 환경 하에서 성능을 분석함으로 802.11 및 802.16 등에 효과적으로 적용할 수 있음을 제시하였다. 아울러 동일조건의 OFDM시스템과 성능을 비교하여 수렴속도가 빠르고 단말기의 복잡도를 줄일 수 있음을 시뮬레이션을 통해 증명하였다.

In the multipath fading channel, OFDM(Orthogonal Frequency Division Multiplexing)system possess the characteristics of ISI/ICIwith prefix, but a weak point of circuit complexity and PAPR problem. SC-FDE(Single Carrier with Frequency Domain Equalization) performance is similar to OFDM system, but equalizer is complex in frequency domain. In this paper, simple proportional equalizer offer for SC-FDE system, it useful method in the $2GHz{\sim}\;10GHz$ channel model such as indoor, outdoor, SUI. It prove using MATLAB simulation, speed faster then OFDM system, reduce terminal complexity in same test condition.

키워드

참고문헌

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