ATSC 3.0 시스템에서 채널 본딩과 계층 분할된 다중입력 다중출력의 결합에 관한 연구

다국어 초록 (Multilingual Abstract)

This paper describes the transmitter and the receiver architectures for integrating individual communication technologies, including Layered Division Multiplexing (LDM), Multiple-Input Multiple-Output (MIMO), and Channel Bonding, in Advanced Television Systems Committee (ATSC) 3.0 system, and evaluates the reception performance of the integrated system. LDM enables the simultaneous transmission of a Core Layer and an Enhanced Layer within the same frequency resource, providing a hierarchical transmission structure that can accommodate diverse service requirements. MIMO enhances data throughput through spatial multiplexing by employing multiple antennas at both the transmitter and the receiver, while Channel Bonding further increases the transmission rate by combining multiple RF channels to expand the effective system bandwidth. The simultaneous application of these three technologies can therefore significantly increase the overall transmission capacity of the system. In this paper, a simulation-based performance comparison and analysis is conducted for ATSC 3.0 system that combines LDM, MIMO, and Channel Bonding. The results show that the reception performance of the system combining LDM and MIMO is comparable to that of the system integrating LDM, MIMO, and Channel Bonding. This indicates that the joint application of all three technologies can substantially increase the data rate without performance degradation over the operating SNR range.

목차 (Table of Contents)

• List of Tables· ⅲ
• List of Figures ⅳ
• Abstract· ⅵ
• 1. 서 론 1
• 2. ATSC 3.0 물리 계층 구조 4
• 2.1 ATSC 3.0 송신기 시스템 구조 4
• 2.2 ATSC 3.0 프레임 구조· 6
• 2.3 L1 시그널링· 7
• 3. LDM, MIMO, Channel Bonding 결합 9
• 3.1 MIMO 적용 9
• 3.2 Channel Bonding 적용 13
• 3.3 LDM 적용 17
• 3.4 LDM와 MIMO의 결합· 21
• 3.5 MIMO와 Channel Bonding의 결합 25
• 3.6 LDM, MIMO, Channel Bonding 결합 29
• 4. LDM, MIMO, Channel Bonding 결합 수신기 구현 32
• 4.1 수신 모델 32
• 4.2 LDM, MIMO, Channel Bonding 결합 수신기 흐름도 및 구조 34
• 4.3 채널 추정 38
• 4.4 cell re-exchange 39
• 4.5 LDM cancellation 40
• 4.6 LLR 계산 42
• 5. 전산 실험 결과 43
• 6. 결론 61
• 참고문헌 63
• 초록 66