본 논문은 디지털 케이블망에서 초고선명 TV(Ultra High Definition TV) 서비스를 위한 100Mbps급 1024-QAM 전송시스템 개발에 관하여 기술한다. 8K-UHD TV(해상도:7680x4320) 콘텐츠 전송을 위해서는 1개의 프로그램당 약 100~160Mbps의 대용량 데이터 전송률이 확보되어야 하며, 이러한 대용량 데이터 전송을 위해 타매체에 비해 상대적으로 전송채널 환경이 우수한 디지털 케이블망(HFC:Hybrid Fiber and Coaxial)을 이용한 대용량 실감데이터 전송기술에 대한 연구가 주목받고 있다. 본 논문에서는 이와 같은 UHD 실감콘텐츠 전송을 위하여, OpenCable(J.83 Annex B) 확장형 1024-QAM 송수신기술 및 방송망 채널본딩기법을 적용한 100Mbps급 송수신 기술개발에 대한 내용을 기술한다.
KSP Keywords
1024-QAM, Hybrid fiber, UHD TV, ultra high definition
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