The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Peak-to-Average Power Ratio Reduction by Partial Parallel Transform in an OFDM-CDMA System

OFDM-CDMA 시스템에서 부분병렬환을 이용한 PAPR 감쇄기법

  • 주양익 (고려대학교 전자공학과 차세대 이동통신 연구실)
  • Published : 2000.10.01
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Abstract

In this paper, an effective peak power reduction scheme for a downlink OFDM-CDMA system is proposed. Using the partial parallel transform(PPT) structure, peak-to-average power ratio(PAPR) can be reduced. The patterns of inputs of Inverse Fast Fourier Transform(IFFT) are more randomized in this structure by allotting the subcarriers to each users. At the cost of complexity we can obtain reduced PAPR and multiple access interference(MA) Computer simulations are carried out from the viewpoint of PAPR and demonstrated the improved PAPR performance.

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References

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