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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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An Efficient and Flexible Hybrid Conditional Access System for Advanced T-DMB

  • Bae, Byung-Jun (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
  • Song, Yun-Jeong (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
  • Lee, Soo-In (Broadcasting & Telecommunications Convergence Research Laboratory, ETRI) ;
  • Seo, Hyung-Yoon (Department of Computer Science and Engineering, Pusan National University) ;
  • Kim, Jong-Deok (Department of Computer Science and Engineering, Pusan National University)
  • Received : 2010.08.02
  • Accepted : 2010.10.25
  • Published : 2011.08.30
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Abstract

This letter presents a hybrid conditional access system (CAS) for advanced terrestrial digital multimedia broadcasting (AT-DMB). 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.

Keywords

References

  1. ETSI EN 300 401, "Radio Broadcasting Systems: Digital Audio Broadcasting (DAB) to Mobile, Portable and Fixed Receivers," ver. 1.4.1, June 2006.
  2. Y.-J. Lee et al., "Design and Development of T-DMB Multichannel Audio Service System Based on Spatial Audio Coding," ETRI J., vol. 31, no. 4, Aug. 2009 pp. 365-375. https://doi.org/10.4218/etrij.09.0108.0557
  3. K.Y. Kim et al., "Efficient Generation of Scalable Transport Stream for High Quality Service in T-DMB," ETRI J., vol. 31, no. 1, Feb. 2009, pp. 65-67. https://doi.org/10.4218/etrij.09.0208.0216
  4. ETSI TS 102 367, "Digital Audio Broadcasting (DAB): Conditional Access," ver. 1.2.1, Jan. 2006.

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