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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance Analysis of Massive MIMO Systems According to DoF

DoF에 따른 Massive MIMO 시스템의 성능 분석

  • Kim, Yongok (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Choi, Sooyong (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2015.10.07
  • Accepted : 2015.11.04
  • Published : 2015.11.30
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Abstract

In this letter, we investigate the performance analysis of massive MIMO systems using MRT and ZF precodings according to the number of DoF. We analyze the ergodic received SINRs with MRT and ZF precodings as closed-forms over the number of DoF normalized by the number of antennas. In simulation results, we verify the analyzed results and observe that MRT precoding is better than ZF precoding in terms of the ergodic received SINR with a small number of DoF.

본 논문에서는 MRT 및 ZF 프리코딩 기법을 사용하는 Massive MIMO 시스템의 DoF 수에 따른 성능을 분석한다. 본문에서는 하향링크에서 각 MRT 및 ZF 프리코딩 사용시 평균 수신 SINR을 송신 안테나 수에 따라 정규화된 DoF의 수에 대한 Closed-Form으로 도출하였다. 분석 및 모의실험 결과를 통해 DoF 수가 적을 경우 MRT 프리코딩이 ZF 프리코딩 대비 우수한 성능을 달성할 수 있음을 확인하였다.

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References

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