Making Hierarchical Modulation More Flexible

机译：使分层调制更加灵活

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In a broadcast system using the hierarchical modulation, the system delivers several streams with different waveforms and required Signal-to-Noise Ratios (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 in order to offer more flexibility in hierarchical modulation design.

机译：在使用分级调制的广播系统中，系统传送具有不同波形和所需信噪比（SNR）的多个流，通常是SD-TV和HD-TV。在应用层，每个流以特定的速率传送。必须定义物理层，以便针对数据速率和SNR阈值的双重约束优化每个流的保护。我们在本文中证明，在操作典型情况下，像DVB-SH这样的标准并不总是能很好地适应这些系统的限制。在揭示了经典分层调制方法的当前局限性之后，我们提出了两种可能的适应方案来解决这些操作要求，以便在分层调制设计中提供更大的灵活性。

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来源
《29th AIAA international communications satellite systems conference 2011》|2011年|p.234-239|共6页
会议地点 Nara(JP);Nara(JP)
作者
Hugo Meric; Jerome Lacan; Marie-Laure Boucheret; Fabrice Arnal; Zakariya Faraj; Caroline Amiot-Bazile; Guy Lesthievent;
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作者单位

TeSA/Universite de Toulouse, Toulouse. France;

TeSA/Universite de Toulouse, Toulouse. France;

TeSA/Universite de Toulouse, Toulouse. France;

Thales Alenia Space, Toulouse, France;

Thales Alenia Space, Toulouse, France;

CNES, Toulouse, France;

CNES, Toulouse, France;

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原文格式 PDF
正文语种 eng
中图分类 V474.21;
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3. Nyquist four-level pulse amplitude modulation scheme (PAM-4) based on hierarchical modulation in IM/DD-TDM PON with hybrid equalization [J] . Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter . 2020,第期

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5. Automatic Modulation Classification at the Wireless Physical Layer Using Deep Learning and Induced Class Hierarchies [D] . Odemuyiwa, Toluwanimi. 2019

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7. Making hierarchical modulation more flexible [O] . Méric, Hugo, Lacan, Jérôme, Boucheret, Marie-Laure, 2011

机译：使分层调制更加灵活

Making Hierarchical Modulation More Flexible

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