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A Study on the Performance Improvement Technique for Terrestrial DMB Watermarking based on MBOK Spread Spectrum  

Cha, Jae-Sang (서울산업대학교 매체공학과)
Lee, Min-Ho (서울산업대학교 매체공학과)
Lee, Kyong-Gun (성균관대학교 전기전자 및 컴퓨터공학부)
Kim, Jong-Tae (성균관대학교 전기전자 및 컴퓨터공학부)
Kim, Gun (한국전자통신연구원)
Park, So-Ra (한국전자통신연구원)
Lee, Yong-Tae (한국전자통신연구원)
Bae, Jung-Nam (광운대학교 전파공학과)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.9, no.1, 2010 , pp. 42-48 More about this Journal
Abstract
In this paper, we proposed analysis performance improvement technique for T-DMB watermarking based on MBOK spread spectrum. By applying the proposed scheme to T-DMB system, it allows additional data transmission and improves spectral efficiency of data transmission through watermarking spreading code. Using MBOK spread spectrum technique, data rate improved 2m-times existing direct sequence spread spectrum. However, since hardware complexity increase as the value of m becomes large, the method should be used with optimal situation. We analyze T-DMB watermarking techniques performance with MBOK spread spectrum and averaging. As a result, we confirm DER performance of MBOK spread spectrum scheme and it is shown system performance is improved as the number of averaging increases. The results of the paper can be applied to wireless multimedia digital broadcasting system.
Keywords
MBOK; Terrestrial digital multi-media broadcasting (T-DMB); watermarking; spread spectrum; averaging;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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