Information and Communications Magazine (정보와 통신)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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5G 이동통신을 위한 전이중방식 송수신기의 자기간섭제어기술 동향 분석

  • Published : 2015.10.31
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Abstract

본 논문에서는 5G 이동통신에 적용하기 위한 동일대역 전이중방식 송수신기의 자기간섭제거 기술 동향에 대하여 분석하였다. 전이중방식 송수신기는 기존의 반이중방식 송수신시스템에 비하여 스펙트럼 효율성이 높고, 고속, 고용량의 데이터처리를 제공할 수 있기 때문에 5G 이동통신에서 사용될 송수신기 기술로 연구되고 있다. 전이중방식 송수신기에서 가장 문제가 되는 것은 동일주파수에서 송신과 수신이 이루어지면서 발생하는 자기간섭이며, 이를 해결하기 위한 자기간섭 격리 또는 제거기술이 안테나 및 채널, 아날로그 RF, 디지털 영역으로 구분되어 연구되고 있으며, 최근에는 시스템 측면에서 통신시스템의 성능을 확보하기 위한 연구가 다양하게 이루어지고 있다. 본 논문에서는 자기간섭제거기술의 정의 및 종류, 초기연구동향 그리고 최근 연구동향을 시스템측면과 요소기술측면에서 파악하여 전이중방식 송수신기를 위한 기본 연구를 통해 효율적인 설계를 위한 접근방법을 제시하고자 한다.

Keywords

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