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Volume 31 Issue 3
Dec.  2010
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Xi Xiao-ping, Zhang Can. Study on ICI Cancellation Algorithms for Mobile OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862
Citation: Xi Xiao-ping, Zhang Can. Study on ICI Cancellation Algorithms for Mobile OFDM Systems[J]. Journal of Electronics & Information Technology, 2009, 31(3): 653-656. doi: 10.3724/SP.J.1146.2007.01862

Study on ICI Cancellation Algorithms for Mobile OFDM Systems

doi: 10.3724/SP.J.1146.2007.01862
  • Received Date: 2007-12-03
  • Rev Recd Date: 2008-06-13
  • Publish Date: 2009-03-19
  • For broadband OFDM systems, Doppler effect induced by high mobility gives rise to the InterCarrier Interference (ICI). By fully exploiting the ICI distribution property and partial channel information, two novel complexity-reduced Minimum Mean Square Error (MMSE) and Decision-Feedback Equalizer (DFE) are derived. Theoretical analysis and simulations illustrate that the new schemes provide a flexible and controllable approach to obtain the tradeoff between performance and complexity. When compared with existing schemes, the proposed DFE equalizer mitigates the error floor effect at the classical receiver and obtains performance improvement with the same computational overheads.
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