The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Frequency Offset Estimation Technique for MB-OFDM Based UWB Systems

다중대역 직교 주파수 분할 다중 (MB-OFDM) 기반 초광대역(UWB) 시스템을 위한 주파수 오프셋 추정 기법

  • 황유모 (명지대학교 정보통신공학과) ;
  • Received : 2010.10.28
  • Accepted : 2011.01.11
  • Published : 2011.03.01
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Abstract

We propose a new frequency offset estimation technique for multiband orthogonal frequency modulation (MB-OFDM) based ultra wideband (UWB) systems. The proposed frequency offset estimation technique is related to the scheme of Schmidl for channel model 1 (4-1Om NLOS, rms. delay =14.3ns.) using more than two symbols and with alternate symbols. Variance of frequency offset estimate obtained from the proposed frequency offset estimation technique approaches very nearing to Cramer Rao Lower Bound (CRLB) in an AWGN channel. BER performance of the proposed technique is also presented.

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References

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