Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Joint Timing and Frequency Offset Estimation in OFDMA Uplink Systems Using Phase Shift Orthogonal Sequence

Phase Shitf Orthogonal Sequence를 이용한 OFDMA 상향 링크 시스템에서의 시간 및 주파수 오차 추정 알고리즘

  • Min, Hyun-Kee (Information and Telecommunication Lab. Dept. of Electrical and Electronic Eng., Yonsei Univ.) ;
  • Ju, Hyung-Sik (Information and Telecommunication Lab. Dept. of Electrical and Electronic Eng., Yonsei Univ.) ;
  • Lee, Sun-Geun (Information and Telecommunication Lab. Dept. of Electrical and Electronic Eng., Yonsei Univ.) ;
  • Kwak, Kyung-Chul (Information and Telecommunication Lab. Dept. of Electrical and Electronic Eng., Yonsei Univ.) ;
  • Hong, Dae-Sik (Information and Telecommunication Lab. Dept. of Electrical and Electronic Eng., Yonsei Univ.)
  • 민현기 (연세대학교 전기전자공학부 정보통신연구실) ;
  • 주형식 (연세대학교 전기전자공학부 정보통신연구실) ;
  • 이성은 (연세대학교 전기전자공학부 정보통신연구실) ;
  • 곽경철 (연세대학교 전기전자공학부 정보통신연구실) ;
  • 홍대식 (연세대학교 전기전자공학부 정보통신연구실)
  • Published : 2006.06.21
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Abstract

We present a multiuser synchronization scheme for OFDMA uplink systems. First a new preamble structure is proposed by which timing and frequency offsets estimation is developed. Based on proposed structure a new joint synchronization scheme is presented and the simulation results show that the performance of this scheme don't suffer from the number of users.

Keywords