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

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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공간변조 기법을 위한 새로운 PAPR 감쇄 방법

New PAPR Reduction Method for Spatial Modulation

  • 샹위롱 (전남대학교 전자컴퓨터공학부) ;
  • 김호준 (전남대학교 전자컴퓨터공학부) ;
  • 김홍중 (전남대학교 전자컴퓨터공학부) ;
  • 정태진 (전남대학교 전자컴퓨터공학부)
  • 투고 : 2013.10.18
  • 심사 : 2014.01.13
  • 발행 : 2014.01.31
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초록

In this paper, a new peak-to-average power ratio (PAPR) reduction method for spatial modulation(SM) is presented. By using the matrix with all non-zero elements to precode the signals before transmitting, the transmit power is scattered over all transmit antennas for achieving the goal of PAPR reduction. If this matrix is also an unitary matrix, the distribution of transmit power over transmit antennas will be uniform and it also could retain the characteristic of avoiding inter channel interference (ICI) due to the orthogonality of unitary matrix. In case of a non-ideal amplifier, the proposed method can produce a considerable improvement that increases with a number of transmit antennas in performance. Furthermore, the new scheme achieves an identical performance with conventional one in the case of ideal amplifier.

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참고문헌

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