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Volume 30 Issue 9
Jan.  2011
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Xu Guo-Ping, He Wei, Zhang Xin, Yang Da-Cheng. Analysis of Inherent Error of Overlap-Cut Method Frequency Domain Equalization and Relating Improvements[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2178-2181. doi: 10.3724/SP.J.1146.2007.00304
Citation: Xu Guo-Ping, He Wei, Zhang Xin, Yang Da-Cheng. Analysis of Inherent Error of Overlap-Cut Method Frequency Domain Equalization and Relating Improvements[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2178-2181. doi: 10.3724/SP.J.1146.2007.00304

Analysis of Inherent Error of Overlap-Cut Method Frequency Domain Equalization and Relating Improvements

doi: 10.3724/SP.J.1146.2007.00304
  • Received Date: 2007-03-01
  • Rev Recd Date: 2007-09-12
  • Publish Date: 2008-09-19
  • A modification is proposed to reduce the complexity of Overlap-Cut (OC) method Frequency Domain Equalization (FDE) in Code Division Multiple Access (CDMA) downlink systems. FDE based on Fast Fourier Transform/Inverse Fast Fourier Transform (FFT/IFFT) carries out single-tap equalization on received signal, moreover, its complexity is much lower than its time-domain counterpart. The analysis for the generation and the distribution of the inherent error of OC method FDE indicates some improvement to the equalizer. As a result of both theoretical analysis and simulation, a better performance is obtained with lower computation burden than conventional algorithms.
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