Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Recent Trend of the Technology Development for Multiuser MIMO based on LTE-Advanced Standard

LTE-Advanced 표준에 바탕을 둔 다중사용자 MIMO의 기술개발 현황

  • 이병주 (고려대학교 컴퓨터.전파통신공학과) ;
  • 임채만 (삼성전자) ;
  • 심병효 (고려대학교 컴퓨터.전파통신공학과)
  • Received : 2011.12.15
  • Accepted : 2012.04.17
  • Published : 2012.04.25
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Abstract

As the demand for smart phone user is rapidly increasing in recent years, the development of new mobile communication system which provides more improved quality compared to existing 3G standard is highly requested. In this point, the long-term evolution (LTE) system, which was being developed in mid of 2000's, has attracted a considerable attention. The LTE has been developed continuously to result a release 10 which is called as LTE-Advanced (LTE-A) in 2010. Among various features in LTE-A, the multiuser MIMO (MU-MIMO) design is expected to give better quality for throughput, spectral efficiency, and latency. In this paper, we first review the development process from LTE to LTE-A. We also provide the overview of design challenges and specific solutions for MU-MIMO systems developed in LTE-Advanced standard.

최근 들어, 스마트 기기의 수요가 급증하면서 기존의 3G 표준에 비해 향상된 품질을 제공하는 long-term evolution (LTE) 서비스가 전 세계적으로 활발히 보급되고 있다. 2010년에 발표된 릴리즈 10은 흔히 LTE-Advanced (LTE-A)로 불리는데, LTE-A의 여러 특징 중 다중사용자 MIMO (MU-MIMO) 기술은 정보 처리량을 향상시키기 위한 LTE-A의 핵심기술로 근래 많은 주목을 받고 있다. 본 논문에서는 LTE 및 LTE-A 시스템에서 도입된 MU-MIMO 기술의 이론적 배경 및 표준의 주요 특징을 소개한다.

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References

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