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

  • 제32권5C호
  • /
  • Pages.550-555
  • /
  • 2007
  • /
  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

UWB MB-OFDM 시스템에서 TOA 성능향상을 위한 동기화 기법

Timing Synchronization for Performance Improvement of TOA in UWB MB-OFDM Systems

  • 권형주 (세종대학교 정보통신공학과) ;
  • 이준호 (세종대학교 정보통신공학과) ;
  • 정영석 (세종대학교 정보통신공학과) ;
  • 조상호 (세종대학교 정보통신공학과)
  • 발행 : 2007.05.31
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초록

IEEE 802.15.3a task group에서 채택한 4가지의 UWB 채널 모델과 AWGN 채널 모델에 대해서, MB-OFDEM 시스템의 preamble 신호를 이용한 TOA 성능 향상기법을 제안한다. 제안되는 방법은 수신 신호와 template 신호 사이의 correlation에 의한 타이밍 동기화 지점을 이용하여 TOA를 추정한다. 제안한 방법의 성능이 기존의 방법에 비하여 우수한 성능을 나타냄을 전산모의실험을 통하여 확인한다.

We propose how to improve the performance of TOA estimation in UWB MB-OFDM systems. The scheme is based on the correlation between the OFDM preamble and the template signal. The validity of the proposed scheme is shown using the simulation results, where it is shown that the performance of the proposed scheme outperforms that of the existing schemes

키워드

참고문헌

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