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http://dx.doi.org/10.5909/JBE.2009.14.4.509

Study on the Performance of Hierarchical Modulation for AT-DMB System  

Lee, Sang-Jin (Dept. of Electrical & Electronic Eng., Yonsei University)
Lee, Sang-Woon (Dept. of Multimedia, Namseoul University)
Yang, Kyu-Tae (Terrestrial Transmission Technology Research Team, Electronics and Telecommunications Research Institute)
Lim, Jong-Soo (Terrestrial Transmission Technology Research Team, Electronics and Telecommunications Research Institute)
Publication Information
Journal of Broadcast Engineering / v.14, no.4, 2009 , pp. 509-517 More about this Journal
Abstract
This paper introduces an Advanced Terrestrial DMB (AT-DMB) system which provides higher efficiency of transmission and better quality of service than conventional T-DMB system. In AT-DMB, a hierarchical modulation method is applied to transmit more data while maintaining backward compatibility to conventional T-DMB receivers. This method can provide not only high quality video service but also lots of broadcasting channels. In this paper, the performance of the hierarchical modulation in AT-DMB system is analyzed with computer simulation in several environments compared with the performance of T-DMB system.
Keywords
T-DMB; Advanced T-DMB; hierarchical modulation; mobile broadcasting; OFDM; Turbo code;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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