光强调制信道的信号星座设计

Proceedings. 2001 IEEE International Symposium on Information Theory (IEEE Cat. No.01CH37252) Pub Date : 2001-06-29 DOI:10.1109/ISIT.2001.936138

S. Hranilovic, F. Kschischang

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引用次数: 2

摘要

我们定义了光强直接检测信道的点阵码。这些代码服从非负性约束，并被塑造成最小化平均光功率。给出了在矩形PAM基线上编码和整形增益的表达式。在短距离上，我们展示了晶格码为自由空间光学链路提供了显著的速率增益。

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Signal constellation design for optical intensity modulated channels

We define lattice codes for the optical intensity direct-detection channel. These codes obey a non-negativity constraint and are shaped to minimize average optical power. Expressions for the coding and shaping gain of such codes over a rectangular PAM baseline are presented. Over short distances, we show that lattice codes provide significant rate gains for free-space optical links.

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Proceedings. 2001 IEEE International Symposium on Information Theory (IEEE Cat. No.01CH37252)

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