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Journal Article
An Efficient and Flexible Hybrid Conditional Access System for Advanced T-DMB
- Authors
- Byungjun Bae, Yun-Jeong Song, Soo-In Lee, Hyung-Yoon Seo, Jong-Deok Kim
- Issue Date
- 2011-08
- Citation
- ETRI Journal, v.33, no.4, pp.629-632
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- This letter presents a hybrid conditional access system (CAS) for advanced terrestrial digital multimedia broadcasting (ATDMB). The proposed architecture is characterized by its use of a unified CAS channel and various communication networks for CAS message transmissions. We implement a prototype CAS based on the hybrid architecture, which improves the CAS message transmission efficiency greatly compared to the existing T-DMB CAS standard and supports various AT-DMB interlayer services more easily and efficiently. © 2011 ETRI.
- KSP Keywords
- Conditional access system, Digital multimedia broadcasting, communication network, hybrid architecture, message transmission, transmission efficiency