Satellite Media Broadcasting with Adaptive Coding and Modulation
Adaptive Coding and Modulation (ACM) is a feature incorporated into the DVB-S2 satellite specification, allowing real-time adaptation of transmission parameters according to the link conditions. Although ACM...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2009-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2009/879290 |
| Summary: | Adaptive Coding and
Modulation (ACM) is a feature incorporated into
the DVB-S2 satellite specification, allowing
real-time adaptation of transmission parameters
according to the link conditions. Although ACM
was originally designed for optimizing unicast
services, this article discusses the expansion
of its usage to broadcasting streams as well.
For this purpose, a general cross-layer
adaptation approach is proposed, along with its
realization into a fully functional experimental
network, and test results are presented. Finally,
two case studies are analysed, assessing the
gain derived by ACM in a real large-scale
deployment, involving HD services provision to
two different geographical areas. |
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| ISSN: | 1687-7578 1687-7586 |