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Conference Paper
New Bit Mapping for Hierarchically Modulated DAB and Terrestrial DMB
- Authors
- Hyoung Soo Lim, Heung Mook Kim, Jong Soo Lim
- Issue Date
- 2008-01
- Citation
- International Conference on Consumer Electronics (ICCE) 2008, pp.1-2
- Language
- English
- Type
- Conference Paper
- Project Code
- 07MR2500, Development of Distributed Translator Technology for Terrestrial DTV, Heung Mook Kim
- Abstract
- 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 Keywords
- 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