Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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New Core-Layer Soft Decoding Method for ATSC3.0 LDM-MIMO Broadcasting Systems

ATSC3.0 LDM-MIMO 방송 시스템을 위한 새로운 Core-Layer 연판정 기법

  • Baek, Hyeonguk (Dept. of LG Smart Hybrid Engineering, Chonnam National University) ;
  • Kim, Seunghyeon (Dept. of Electronics & Computer Engineering, Chonnam National University) ;
  • Kim, Hojun (R&D Team, Network Business, Samsung Electronics) ;
  • Jung, Taejin (Dept. of Electronics & Computer Engineering, Chonnam National University)
  • 백형욱 (전남대학교 LG스마트융합공학과) ;
  • 김승현 (전남대학교 전자컴퓨터공학부) ;
  • 김호준 (삼성전자 네트워크사업부) ;
  • 정태진 (전남대학교 전자컴퓨터공학부)
  • Received : 2019.10.07
  • Accepted : 2019.11.14
  • Published : 2019.11.30
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Abstract

In this letter, we propose a new soft decoding method for a Core-Layer(CL) signal in ATSC3.0 Layered-Division-Multiplexing Multiple-Inputs-Multiple-Outputs broadcasting systems. Unlike a conventional Gaussian-Approximation(GA) method, the proposed method decodes the CL signal by reducing a Enhanced-Layer signal simply to a QPSK signal, and thus exhibits greatly improved performance compared to the GA method especially for a lower CL injection-level.

본 레터는 ATSC3.0 Layered-Division-Multiplexing Multiple-Inputs-Multiple-Outputs 방송 시스템에서 Core-Layer (CL) 전송 신호에 대한 새로운 연판정 복조 기법을 제안하고자 한다. 제안된 기법은 기존의 Guassian-Approximation (GA) 기법과 달리 동시에 전송되는 Enhanced-Layer 신호를 QPSK 신호로 모델링하여 CL 전송 신호를 복호하게 되며, 실험 결과 CL injection-level이 작을수록 기존의 GA 기법에 비하여 월등한 성능 향상을 보인다.

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References

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