상세정보
학술지
Performance of TZCD-MBOK Watermarking Scheme in T-DMB Systems
- 발행일
- 201203
- 출처
- Multimedia Tools and Applications, v.57 no.2, pp.359-372
- ISSN
- 1380-7501
- 출판사
- Springer
- 협약과제
- 10MR2100, 동일주파수망에서의 터널용 T-DMB 재난방송 기술개발, 이용태
- 초록
- Recently, watermarking based data transmission techniques using terrestrial digital TV signal have been proposed since they are also cost-free and can overcome the limitations of GPS. However, in the previous watermarking based methods, the detection accuracy is low and additional data rate is too low. Thus, we propose the throughput enhancement method by employing the TZCD-MBOK watermarking technique in T-DMB system. By applying the proposed scheme to T-DMB, it allows additional data transmission for disaster broadcasting and improves efficiency of data transmission in shadow region and indoor to mobile environment through watermarking spread code. From the simulation results, we confirm the proposed watermarking scheme affected on the existing T-DMB signal. Moreover, it was also confirmed that the system capacity increases as the power of additional watermarking signal rose. The results of the paper can be applied to wireless multimedia digital broadcasting systems. © 2011 Springer Science+Business Media, LLC.
- KSP 제안 키워드
- Broadcasting system, Data transmission, Detection accuracy, Digital Broadcasting, Enhancement method, data rate, digital TV, mobile environment, simulation results, system capacity, throughput enhancement