Information and Communications Magazine (정보와 통신)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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4G 이동통신을 위한 Multiple-Antenna OFDM 기술

  • 박경원 (중앙대학교 전자전기공학부) ;
  • 이미현 (중앙대학교 전자전기공학) ;
  • 조용수 (중앙대학교 전자전기공학부)
  • Published : 2004.07.01
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Abstract

본 고에서는 Beyond IMT-2000 시스템의 전송방식으로 고려 중인 multiple-antenna OFDM (Orthogonal Frequency Division Multiplexing) 방식에 대하여 기술한다. OFDM 방식은 무선채널에서 고속으로 데이터 전송을 하고자 할 경우 다중경로에 의해 발생하는 심각한 주파수 선택적 페이딩 채널에 쉽게 대처할 수 있고, 셀내 간섭이 존재하지 않으며, 자원 할당의 granularity가 우수하고, FFT와 1-탭 등화기를 사용하여 고속으로 구현할 수 있다는 장점이 있어 4G 이동통신의 전송 방식으로 최근 활발히 연구되고 있다［1］-［4］.(중략)

Keywords

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