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학술대회 New Bit Mapping for Hierarchically Modulated DAB and Terrestrial DMB
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저자
임형수, 김흥묵, 임종수
발행일
200801
출처
International Conference on Consumer Electronics (ICCE) 2008, pp.1-2
DOI
https://dx.doi.org/10.1109/ICCE.2008.4587884
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