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Volume 28 Issue 3
Sep.  2010
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Liu Da-wei, Tang You-xi, Li Shao-qian. Impact of Doppler on BER Performance in TDD Pre-equalization OFDM Systems[J]. Journal of Electronics & Information Technology, 2006, 28(3): 440-445.
Citation: Liu Da-wei, Tang You-xi, Li Shao-qian. Impact of Doppler on BER Performance in TDD Pre-equalization OFDM Systems[J]. Journal of Electronics & Information Technology, 2006, 28(3): 440-445.

Impact of Doppler on BER Performance in TDD Pre-equalization OFDM Systems

  • Received Date: 2004-07-27
  • Rev Recd Date: 2004-12-10
  • Publish Date: 2006-03-19
  • The impact of Doppler on the receivers BER performance of TDD pre-equalized OFDM systems is investigated. The analytic BPSK BER expressions of amplitude and phase pre-equalized OFDM systems in multi-path Rayleigh fading environment are given, which undergoes Doppler frequency shift. The computer simulations verify theoretical results. In TDD pre-equalization OFDM systems, the Doppler frequency shift would make channel time-variant, degrade system performance. A new structure adopting Wiener predictor filter is proposed in such systems to improve system performance greatly.
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