상세정보
학술대회
New Bit Mapping for Hierarchically Modulated DAB and Terrestrial DMB
- 발행일
- 200801
- 출처
- International Conference on Consumer Electronics (ICCE) 2008, pp.1-2
- 협약과제
- 07MR2500, 지상파 DTV 분산중계 기술개발, 김흥묵
- 초록
- Hierarchical modulation is considered for increased data rate in the next-generation DAB (Digital Audio Broadcasting) or T-DMB (Terrestrial Digital Multimedia Broadcasting) system, which supports backward compatibility to the conventional DAB or T-DMB. Since dedicated pilot signal is not available due to the constraint of backward compatibility, decision-directed channel estimation schemes should be employed at the receiver. In this paper, we propose a new bit mapping scheme for hierarchical modulation which guarantees robust channel estimation against decision errors. ©2008 IEEE.
- KSP 제안 키워드
- Backward compatibility, Channel estimation(CE), Decision-directed channel estimation, Digital Audio Broadcasting, Digital multimedia broadcasting, Hierarchical modulation, Next-generation, Pilot signal, Robust channel estimation, bit mapping, data rate