ETRI Journal

  • 제24권3호
  • /
  • Pages.247-250
  • /
  • 2002
  • /
  • 1225-6463(pISSN)
  • /
  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Low-Complexity Symbol Timing Offset Estimation Schemes for OFDM Systems

  • Park, So-Ra (Mobile Multimedia Broadcasting Research Team, ETRI) ;
  • Jung, Young-Ho (Mobile Multimedia Broadcasting Research Team, ETRI) ;
  • Lee, Son-In (Mobile Multimedia Broadcasting Research Team, ETRI)
  • 투고 : 2002.01.16
  • 발행 : 2002.06.30
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초록

In this paper, we propose three symbol syn-chronization schemes for Orthogonal Frequency Division Multiplex (OFDM) systems. The cyclic extension preceding OFDM symbols is of decisive importance for these schemes. The first scheme uses the phase-differential coding of the received OFDM signal. The second and the third schemes use the length of the received OFDM signal. All three schemes make symbol synchronization possible, even though there is a frequency off-set in the system. Simulation results show that these schemes can be used to synchronize an OFDM system over AWGN and multi-path fading channels.

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참고문헌

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  2. IEEE Comm. Mag. no.Feb. Transmission Techniques for Digital Terrestrial TV Broadcasting Sari, H.;Karam, G.;Jeanclaude, I.
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  7. Petition for Rulemaking to the United States Federal Communications Commission for In-Band On-Channel Digital Audio Broadcasting