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Cross-layer optimization of unequal protected layered video over hierarchical modulation

Bouabdallah, Amine and Pradas, David and Lacan, Jérôme and Vazquez Castro, Maria Angeles and Bousquet, Michel Cross-layer optimization of unequal protected layered video over hierarchical modulation. (2009) In: IEEE Global Communcations Conference. Globecom 2009, 30 Nov - 04 Dec 2009, Honolulu, Hawai, United States .

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Abstract

Abstract-unequal protection mechanisms have been proposed at several layers in order to improve the reliability of multimedia contents, especially for video data. The paper aims at implementing a multi-layer unequal protection scheme, which is based on a Physical-Transport-Application cross-layer design. Hierarchical modulation, in the physical layer, has been demonstrated to increase the overall user capacity of a wireless communications. On the other hand, unequal erasure protection codes at the transport layer turned out to be an efficient method to protect video data generated by the application layer by exploiting their intrinsic properties. In this paper, the two techniques are jointly optimized in order to enable recovering lost data in case the protection is performed separately. We show that the cross-layer design proposed herein outperforms the performance of hierarchical modulation and unequal erasure codes taken independently.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Universitat Autònoma de Barcelona - UAB (SPAIN)
Laboratory name:
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Deposited By: Jérôme Lacan

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