Modulation Schemes for Visible Light Communications

2019 International Conference on Advanced Communication Technologies and Networking (CommNet) Pub Date : 2019-04-01 DOI:10.1109/COMMNET.2019.8742376

Amna Aliaberi, P. Sofotasios, S. Muhaidat

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引用次数: 14

Abstract

Visible light communication (VLC) is one of the most recent technological breakthroughs in wireless communications and it is expected to contribute significantly on future generations of mobile communications. The fundamental feature of VLC is the use of visible light spectrum to transmit data along with the traditional use for illumination. However, this requires, among others, rather fast modulation schemes of optical light sources with dimming support. In this review, we analyze the most important modulation schemes used in VLC systems and provide useful insights on their characteristics. To this end, we also investigate the data rate capabilities of each scheme along with a detailed evaluation of their pros followed by discussions and suggestions for compensating for the latter. In addition, flickering and dimming solutions based on each modulation scheme are thoroughly discussed, while new modulation techniques, such as the Asymmetric Optical Modulation, are analyzed in context with alternative highly efficient modulations schemes, such as generalized space shift keying.

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可见光通信调制方案

可见光通信(VLC)是无线通信领域最新的技术突破之一，预计将对未来几代移动通信做出重大贡献。VLC的基本特点是除了传统的照明用途外，还使用可见光光谱来传输数据。然而，这需要，除其他外，相当快的调制方案的光学光源与调光支持。在这篇综述中，我们分析了VLC系统中使用的最重要的调制方案，并对它们的特性提供了有用的见解。为此，我们还研究了每种方案的数据速率能力，并详细评估了它们的优点，然后讨论了补偿后者的建议。此外，还深入讨论了基于每种调制方案的闪烁和调光解决方案，同时分析了新的调制技术，如非对称光调制，以及其他高效调制方案，如广义空间移位键控。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2019 International Conference on Advanced Communication Technologies and Networking (CommNet)

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