Volume 32 Issue 5
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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2003  >  32(5): 490-494

Chen Timing, Tang Youxi, Li Shaoqian. Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems[J]. Journal of University of Electronic Science and Technology of China, 2003, 32(5): 490-494.
Citation: Chen Timing, Tang Youxi, Li Shaoqian. Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems[J]. Journal of University of Electronic Science and Technology of China, 2003, 32(5): 490-494.
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Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems

  • 1.

    National Key Laboratory of Communication,UEST of China Chengdu 610054

  • Received Date: 2003-08-29
  • Publish Date: 2003-10-15
  • The current analysis focuses on the influence of demodulation performance in multipath fading propagation environments, which results from the pilot power variation of pilot symbol assisted modulation M-PSK in orthogonal frequency division multiplexing systems. The pilot-to-data power ratio is optimized analytically, and the loss due to imperfect channel estimation is calculated. Theoretical and simulation results show that the optimum pilot-to-data power ratio is affected by the signal-to-noise ratio, Doppler frequency and interpolation size etc. Once the optimization parameter of pilot-to-data power ratio is used, system transmission power is minimum while still meeting the fixed bit error rate target.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems

  • 1. National Key Laboratory of Communication,UEST of China Chengdu 610054
  • Received Date: 2003-08-29
  • Publish Date: 2003-10-15

Abstract: The current analysis focuses on the influence of demodulation performance in multipath fading propagation environments, which results from the pilot power variation of pilot symbol assisted modulation M-PSK in orthogonal frequency division multiplexing systems. The pilot-to-data power ratio is optimized analytically, and the loss due to imperfect channel estimation is calculated. Theoretical and simulation results show that the optimum pilot-to-data power ratio is affected by the signal-to-noise ratio, Doppler frequency and interpolation size etc. Once the optimization parameter of pilot-to-data power ratio is used, system transmission power is minimum while still meeting the fixed bit error rate target.

Chen Timing, Tang Youxi, Li Shaoqian. Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems[J]. Journal of University of Electronic Science and Technology of China, 2003, 32(5): 490-494.
Citation: Chen Timing, Tang Youxi, Li Shaoqian. Analysis and Optimization of Pilot-Symbol-Assisted M-PSK for OFDM Systems[J]. Journal of University of Electronic Science and Technology of China, 2003, 32(5): 490-494.
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