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.
Authors: Byeongjun Bae, Yunjeong Song, Su-in Lee, Hyungyoon Seo, Jong-Deok Kim
Journal: ETRI Journal
Publisher: ETRI
DB: SCIE
Impact Factor: 0.897
Publish Date: 2011. 8. 1
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