ETRI Journal
- Volume 30 Issue 6
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- Pages.859-861
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- 2008
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
Effective Multiplexing Method for Conditional Access System in Terrestrial DMB
- Lee, Yong-Hoon (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
- Lee, Gwang-Soon (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
- Lee, Jin-Hwan (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
- Ahn, Chung-Hyun (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
- Lee, Soo-In (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
- Kim, Nam (School of Electrical & Computer Engineering, Chungbuk National University)
- Received : 2008.05.27
- Accepted : 2008.10.22
- Published : 2008.12.31
Abstract
This letter proposes a conditional access system (CAS) suitable for use in terrestrial digital multimedia broadcasting (T-DMB), based on an effective multiplexing method to provide encrypted T-DMB services. Specifically, the proposed multiplexing method for a CAS is designed to reduce the additional bit rate while assuring easy access to the designated encrypted services. Finally, the performance of the implemented CAS is confirmed through implementation and a broadcasting experiment under various service environments.