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The Korean Institute of Commucations and Information Sciences (한국통신학회)
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기회적 간섭 정렬의 개요

  • Published : 2015.04.30
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Abstract

기회적 간섭 정렬 기술은 사용자 간섭 채널에서 탁월한 이론적 성능을 보이는 간섭 정렬 기술을 다수의 사용자와 기지국, 다수의 안테나가 존재하는 다중 셀 다중안테나 셀룰라 네트워크에 적용하는 기술 중 하나로서 각 셀의 사용자가 증가할수록 이론적인 최적 자유도를 달성하는 기술이다. 기회적 간섭 정렬 기법의 장점은 각 셀 상호 정보의 교환 없이 독립적으로 동작하고 각 사용자는 자신과 연관된 채널 정보(local channel state information, local CSI)만을 요구한다는 것이다. 셀의 크기가 감소하고 기지국 및 사용자 단말의 밀도가 크게 증가할 것으로 예상되는 5세대 이동통신 시스템에서는 각 통신링크간 간섭제어가 매우 중요할 것으로 예상된다. 따라서, 본 논문에서는 5세대 이동통신 시스템에서 핵심적인 역할을 할 것으로 예상되는 기회적 간섭 정렬 기법에 관하여 살펴본다.

Keywords

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