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Making hierarchical modulation more flexible

Méric, Hugo and Lacan, Jérôme and Boucheret, Marie-Laure and Arnal, Fabrice and Faraj, Zakariya and Amiot-Bazile, Caroline and Lesthievent, Guy Making hierarchical modulation more flexible. ( In Press: 2011) In: 29th AIAA International Communications Satellite Systems Conference (ICSSC-2011) , 28 Nov - 01 Dec 2011 , Nara, Japan .

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Abstract

In a broadcast system using the hierarchical modulation, the system delivers several streams with different waveforms and required Signal-to-Noise Ratio (SNR), typically SD- TV and HD-TV. At the application layer, each stream is delivered with a particular rate. The physical layer must be defined in order to optimize the protection of each stream with respect to the double constraints of both the data rates and the SNR thresholds. We show in this paper that a standard like DVB-SH is not always well adapted to meet these system constraints in operational typical cases. After exposing the current limitations of a classical hierarchical modulation approach, we present two possible adaptations to address these operational requirements and offer more flexibility in hierarchical modulation design.

Item Type:Conference or Workshop Item (Paper)
Additional Information:http://www.ilcc.com/icssc2011/contents/message_chair.html
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National des Etudes Spatiales - CNES
Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Rockwell Collins (FRANCE)
Other partners > Thales (FRANCE)
Other partners > Telecom ParisTech (FRANCE)
Université de Toulouse > Université de Toulouse II-Le Mirail - UTM
Université de Toulouse > Université de Toulouse I-Sciences Sociales - UT1
Other partners > Direction Générale de l’Aviation Civile - DGAC (FRANCE)
Laboratory name:
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Deposited By: Jérôme Lacan

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