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Journal Article An Efficient and Flexible Hybrid Conditional Access System for Advanced T-DMB
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Authors
Byungjun Bae, Song Yun Jeong, Lee Soo In, 서형윤, 김종덕
Issue Date
201108
Source
ETRI Journal, v.33 no.4, pp.629-632
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.11.0210.0320
Project Code
10MR4800, AT-DMB 상용화 테스트 지원, Song Yun Jeong
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, Hybrid architecture, communication network, message transmission, transmission efficiency