The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Effect of CFO on UFMC System

UFMC 시스템에서 CFO의 영향

  • 이규섭 (홍익대학교 전자전산공학과) ;
  • 최진규 (홍익대학교 전자전기공학과)
  • Received : 2016.04.28
  • Accepted : 2016.06.10
  • Published : 2016.06.30
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Abstract

The UFMC(Universal Filtered Multi-Carrier) is one of multi-carrier transmission technique as a candidate of transmission method for the recent 5G communication system. The UFMC can be considered as the system which has both the advantages of OFDM(Orthogonal Frequency Division Multiplex) and the simplicity of FBMC(Filter Bank Multi-Carrier). CFO(Carrier Frequency Offset) causes the problem to lower the BER performance due to a mismatch between the sub-carriers in multi-carrier transmission scheme. The effect of CFO on UFMC is not greater than the OFDM. But it still degrades the system performance caused by interference between the sub-band. In this paper, we analyze the SNR degradation due to changes in the value of EsNo and CFO on UFMC system.

UFMC(Universal Filtered Multi-Carrier)는 최근 5G통신 시스템의 전송방식 후보로 주목 받고 있는 다중 반송파 송신기술 중의 하나이다. UFMC는 OFDM(Orthogonal Frequency Division Multiplex)의 단순함과 FBMC(Filter Bank Multi-Carrier)의 장점을 합쳐놓은 방식으로 볼 수 있다. CFO(Carrier Frequency Offset)는 다중 반송파 전송방식에서 부 반송파간의 불일치를 일으켜 BER 성능을 낮게 하는 문제점으로 작용하고 있다. UFMC에서의 CFO영향은 OFDM 보다는 크지 않지만 여전히 부 밴드간의 간섭을 일으켜 시스템 성능을 열화 시키고 있다. 이 논문에서는 UFMC에서 CFO의 변화와 EsNo값에 따른 SNR 열화를 분석 하였다.

Keywords

References

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