Journal of Satellite, Information and Communications (한국위성정보통신학회논문지)

Korea Society of Satellite Technology (한국위성정보통신학회)
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Achievable Bit Rate Comparison of Cyclic Prefixed CI/OFDM System and Single Carrier System

Cyclic Prefixed CI/OFDM 시스템과 단일반송파 시스템의 ABR 비교 분석

  • 장휴이 (인하대학교 정보통신공학과 무선전송연구실) ;
  • 황재호 (인하대학교 정보통신공학과 무선전송연구실) ;
  • 황대근 (인하대학교 정보통신공학과 무선전송연구실) ;
  • 김재명 (인하대학교 정보통신공학과 무선전송연구실)
  • Received : 2009.10.20
  • Accepted : 2010.01.05
  • Published : 2010.06.30
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Abstract

Since OFDM system suffers from high peak-to average power ratio(PAPR) drawbacks, more energy has been converted to seek for a new substitutable system which can maintain OFDM system's inherent virtues while avoid its defects. Consequently, a new multicarrier system called as CI/OFDM system has been proposed which applied carrier interferometry(CI) code to OFDM system. Due to its low PAPR advantage and orthogonal property, it has received more and more attention. Simultaneously, an old technique called single carrier(SC) system has retaken its attractions for the same purposes. This paper analyzes two cyclic prefixed transmission schemes variants of OFDM system: 1.carrier interferometry-Orthogonal Frequency-Division Multiplexing (CI/OFDM); 2. Cyclic prefixed single carrie(CP-SC) with frequency domain equalization. We compare the achievable bit rate transmission of the two systems in terms of signal to noise ratio(SNR) by mathematical derivation. We demonstrated that CI/OFDM achieves a bit higher transmission bit rate to that of the CP-SC with frequency domain equalizer.

Keywords

References

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