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

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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Performance Evaluation for Speed of Mobile Devices in UFMC Systems

UFMC 시스템에서 모바일 장치의 이동속도에 대한 성능평가

  • 이규섭 (홍익대학교 전자전산공학과) ;
  • 최진규 (홍익대학교 전자전기공학과)
  • Received : 2016.11.08
  • Accepted : 2017.02.03
  • Published : 2017.02.28
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Abstract

UFMC is known as the one among novel multi-carrier modulation techniques which are designed for replacing OFDM for 5G wireless communication systems. It is the generalized model of OFDM and FBMC, which combines the advantages of OFDM and FBMC and avoids their weak points. UFMC is more robust in synchronization condition like Time-frequency misalignment compared to CP-OFDM. Moreover UFMC is more proper to burst uplink transmission like M2M 5G Communications. In this paper we analyze the BER performance in various channels and speeds. The simulation result shows that the BER performance is lowered when mobile devices are moving fast and the BER performance is so sensitive for the good channel environment.

UFMC(Universal Filtered Multi Carrier)는 새로운 종류의 다중 반송파 전송 기술로 OFDM을 대체하는 것을 목표로 하고 있는 5세대 무선 통신 시스템의 하나이다. 이것은 OFDM(Orthogonal Frequency Division Modulation)과 FBMC(Filter Bank Multi Carrier)의 장점을 결합하고 주요한 단점은 피한 두 시스템의 일반화된 모델이라 할 수 있다. UFMC는 기존의 CP-OFDM(Cyclic Prefix-OFDM)에 비해 시간-주파수 불일치와 같은 동기화 조건에 대하여 비교적 강인한 특징을 갖는다. 또한 5G 시스템 M2M(Machine to Machine) 전송과 같이 burst uplink 전송에 적합하다. 이 논문에서 우리는 다양한 채널 상황과 이동속도의 변화에 따른 UFMC의 BER(Bit Error Rate)성능 변화에 대하여 분석 하였다. 시뮬레이션 결과 모바일 장치의 이동 속도가 높을수록 낮은 BER성능을 확인 할 수 있었고 채널 상황이 좋을수록 속도에 대하여 민감하였다.

Keywords

References

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